[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"cve-CVE-2021-32783":3,"landing-trending":65,"landing-articles":91},{"id":4,"cve_id":5,"euvd_id":6,"summary":7,"published":8,"cvss_data":9,"is_remote":19,"cwes":20,"cpes":23,"technologies":26,"references":28,"score":37,"epss_score":38,"epss_percentile":39,"is_kev":40,"cisa_kev_date_added":41,"cisa_kev_due_date":41,"cisa_ssvc":42,"attack_mappings":48,"exploits":64},293372,"CVE-2021-32783","EUVD-2021-1578","ExternalName Services can be used to gain access to Envoy's admin interface\n\n### Impact\nJosh Ferrell (@josh-ferrell) from VMware has reported that a specially crafted ExternalName type Service may be used to access Envoy's admin interface, which Contour normally prevents from access outside the Envoy container. This can be used to shut down Envoy remotely (a denial of service), or to expose the existence of any Secret that Envoy is using for its configuration, including most notably TLS Keypairs. However, it *cannot* be used to get the *content* of those secrets.\n\nSince this attack allows access to the administration interface, a variety of administration options are available, such as shutting down the Envoy or draining traffic. In general, the Envoy admin interface cannot easily be used for making changes to the cluster, in-flight requests, or backend services, but it could be used to shut down or drain Envoy, change traffic routing, or to retrieve secret metadata, as mentioned above.\n\n### Patches\nThe issue will be addressed in the forthcoming Contour v1.18.0 and a patch release, v1.17.1, has been released in the meantime.\n\nIt is addressed in two ways:\n- disabling ExternalName type Services by default\n- When ExternalName Services are enabled, block obvious \"localhost\" entries.\n\n#### Disable ExternalName type Services by default\n\nThis change prohibits processing of ExternalName services unless the cluster operator specifically allows them using the new `--enable-externalname` flag or equivalent configuration file setting. This is a breaking change for previous versions of Contour, which is unfortunate, but necessary because of the severity of the information exposed in this advisory.\n\n\n#### Block obvious `localhost` entries for enabled ExternalName Services\n\nAs part of this change set, we have added a filter in the event that operators *do* enable ExternalName Services, such that obvious `localhost` entries are rejected by Contour.\n\nThere are a number of problems with this method, however:\n- This is a porous control. As long as you control a domain name, it's trivially easy to add a DNS entry for any name you like that redirects to `127.0.0.1` or `::1`. Contour even provides `local.projectcontour.io` ourselves for testing and example purposes. (This name is, of course, included in the \"obvious localhost entries\" list.) So we can never totally stop this exploit as long as the admin interface is accessible on localhost, which, according to envoyproxy\u002Fenvoy#2763, will be for some time if not forever. The best we can do is block some obvious elements, but this is always a risk for a motivated attacker.\n- We've actually suggested using `localhost` ExternalName Services in the past, to allow people to connect to sidecar External Authentication services in their cluster. Both of these changes break this use-case, but given that it's about something that has security requirements high enough to require authentication, it's important to ensure that people are opting in. For the External Auth sidecar case, we are investigating an update to ExtensionService that will help with the sidecar use case.\n\n### Workarounds\nNot easily. It's not possible to control the creation of ExternalName Services with RBAC without the use of Gatekeeper or other form of admission control, and the creation of services is required for Contour to actually work for application developer personas.\n\n### For more information\nExploit code will be published at a later date for this vulnerability, once our users have had a chance to upgrade.","2021-08-30T17:22:00Z",{"cvss_v3.1":10},{"scope":11,"version":12,"baseScore":13,"attackVector":14,"baseSeverity":15,"vectorString":16,"integrityImpact":17,"userInteraction":17,"attackComplexity":18,"availabilityImpact":15,"privilegesRequired":18,"confidentialityImpact":18},"CHANGED","3.1",8.5,"NETWORK","HIGH","CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:L\u002FUI:N\u002FS:C\u002FC:L\u002FI:N\u002FA:H","NONE","LOW",true,[21,22],"CWE-441","CWE-610",[24,25],"cpe:2.3:a:projectcontour:contour:*:*:*:*:*:kubernetes:*:*","cpe:2.3:a:projectcontour:contour:*:*:*:*:*:*:*:*",[27],"Projectcontour Contour",[29,30,31,32,33,34,35,36],"https:\u002F\u002Fgithub.com\u002Fprojectcontour\u002Fcontour\u002Fcommit\u002Fb53a5c4fd927f4ea2c6cf02f1359d8e28bef852e","https:\u002F\u002Fgithub.com\u002Fprojectcontour\u002Fcontour\u002Freleases\u002Ftag\u002Fv1.17.1","https:\u002F\u002Fgithub.com\u002Fprojectcontour\u002Fcontour\u002Fsecurity\u002Fadvisories\u002FGHSA-5ph6-qq5x-7jwc","https:\u002F\u002Fnvd.nist.gov\u002Fvuln\u002Fdetail\u002FCVE-2021-32783","https:\u002F\u002Fgithub.com\u002Fprojectcontour\u002Fcontour\u002Fcommit\u002F5f3e6d0ab1d48e64bae46400c85c490b200393a3","https:\u002F\u002Fgithub.com\u002Fprojectcontour\u002Fcontour\u002Freleases\u002Ftag\u002Fv1.14.2","https:\u002F\u002Fgithub.com\u002Fprojectcontour\u002Fcontour\u002Freleases\u002Ftag\u002Fv1.15.2","https:\u002F\u002Fgithub.com\u002Fprojectcontour\u002Fcontour\u002Freleases\u002Ftag\u002Fv1.16.1",0.62,0.01151,0.66686,false,null,{"timestamp":41,"automatable":43,"tech_impact":44,"exploitation":45,"cisa_decision":46,"cisa_remediation_timeline":47},"no","partial","none",{},"FSU",[49,55],{"name":50,"source":51,"tactics":52,"technique_id":54},"Exploit Public-Facing Application","attack_vector",[53],"initial-access","T1190",{"name":56,"source":57,"cwe_ids":58,"tactics":59,"capec_ids":61,"technique_id":63},"Internal Proxy","capec",[21],[60],"command-and-control",[62],"CAPEC-465","T1090.001",[],{"count":66,"next":67,"previous":41,"results":68},266,"http:\u002F\u002Fweb:8606\u002Fapi\u002Ftrending_attacks\u002F?page=2&page_size=3&sorted_by=-published_at",[69,78,81],{"id":70,"title":71,"summary":72,"published_at":73,"severity":74,"vendor":75,"products":76},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",[77],"brotli",{"id":66,"title":71,"summary":79,"published_at":73,"severity":74,"vendor":75,"products":80},"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.",[77],{"id":82,"title":83,"summary":84,"published_at":85,"severity":74,"vendor":86,"products":87},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",[88,89,90],"Oracle Java SE","Oracle GraalVM Enterprise Edition","Oracle GraalVM for JDK",{"count":92,"next":93,"previous":41,"results":94},26,"http:\u002F\u002Fweb:8606\u002Fapi\u002Farticles\u002F?page=2&page_size=3&sorted_by=-published_at",[95,103,111],{"id":96,"title":97,"summary":98,"published_at":99,"type":100,"link":101,"image_url":102},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":104,"title":105,"summary":106,"published_at":107,"type":108,"link":109,"image_url":110},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":112,"title":113,"summary":114,"published_at":115,"type":116,"link":117,"image_url":118},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"]