{"id":"CVE-2026-63687","aliases":["CLSA-2026-1794470183","CLSA-2026-1794499784","EUVD-2026-53860","GHSA-7hjx-472h-3f7q","RHLW-2026-2d8697b26ccd16c3","RHLW-2026-fd244c7ea4e4e9e4"],"status":"published","title":"Apache CXF: JwtRequestCodeFilter silently overrides outer PKCE and nonce parameters","description":"Apache CXF's JwtRequestCodeFilter copies all claims from a signed request JWT into the authorization parameter map without excluding security-sensitive parameters. A client that can produce a validly-signed request JWT (e.g., one whose client_secret is known or compromised) can thereby substitute the code_challenge, code_challenge_method, nonce, and state values that were set in the outer HTTP request, undermining PKCE integrity and OpenID Connect replay protection. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00282,"percentile":0.20999,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-345"],"published":"2026-08-06T11:23:45Z","modified":"2026-11-12T19:30:04Z","fixes":[{"ecosystem":"TuxCare:Maven","package":"org.apache.cxf:cxf-rt-rs-security-oauth2","fixed_in":["3.0.12-tuxcare.4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.apache.cxf:cxf-rt-rs-security-oauth2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.12"},{"fixed":"3.0.12-tuxcare.4"}]}],"versions":["3.0.12","3.0.12-tuxcare.1","3.0.12-tuxcare.2","3.0.12-tuxcare.3"]},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.apache.cxf:cxf-rt-rs-security-oauth2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.5.11"},{"fixed":"3.5.11-tuxcare.13"}]}],"versions":["3.5.11","3.5.11-tuxcare.1","3.5.11-tuxcare.10","3.5.11-tuxcare.11","3.5.11-tuxcare.12","3.5.11-tuxcare.2","3.5.11-tuxcare.3","3.5.11-tuxcare.4","3.5.11-tuxcare.5","3.5.11-tuxcare.6","3.5.11-tuxcare.7","3.5.11-tuxcare.8","3.5.11-tuxcare.9"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:Maven","package":"org.apache.cxf:cxf-rt-rs-security-sso-oidc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.5.11"},{"fixed":"3.5.11-tuxcare.13"}]}],"versions":["3.5.11","3.5.11-tuxcare.1","3.5.11-tuxcare.10","3.5.11-tuxcare.11","3.5.11-tuxcare.12","3.5.11-tuxcare.2","3.5.11-tuxcare.3","3.5.11-tuxcare.4","3.5.11-tuxcare.5","3.5.11-tuxcare.6","3.5.11-tuxcare.7","3.5.11-tuxcare.8","3.5.11-tuxcare.9"],"bundled":3},{"source":"osv","ecosystem":"Red Hat Lightwell:Maven","package":"org.apache.cxf:cxf-rt-rs-security-oauth2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.2.2"},{"fixed":"4.2.2.rhlw-00006"}]}],"versions":["4.2.2"],"bundled":4},{"source":"osv","ecosystem":"Red Hat Lightwell:Maven","package":"org.apache.cxf:cxf-rt-rs-security-oauth2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.9.rhlw-00003"}]}],"versions":["2.6.0","2.6.1","2.6.10","2.6.11","2.6.12","2.6.13","2.6.14","2.6.15","2.6.16","2.6.17","2.6.2","2.6.3","2.6.4","2.6.5","2.6.6","2.6.7","2.6.8","2.6.9","2.7.0","2.7.1","2.7.10","2.7.11","2.7.12","2.7.13","2.7.14","2.7.15","2.7.16","2.7.17","2.7.18","2.7.2","2.7.3","2.7.4","2.7.5","2.7.6","2.7.7","2.7.8","2.7.9","3.0.0","3.0.0-milestone1","3.0.0-milestone2","3.0.1","3.0.10","3.0.11","3.0.12","3.0.13","3.0.14","3.0.15","3.0.16","3.0.2","3.0.3","3.0.4","3.0.5","3.0.6","3.0.7","3.0.8","3.0.9","3.1.0","3.1.1","3.1.10","3.1.11","3.1.12","3.1.13","3.1.14","3.1.15","3.1.16","3.1.17","3.1.18","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7","3.1.8","3.1.9","3.2.0","3.2.1","3.2.10","3.2.11","3.2.12","3.2.13","3.2.14","3.2.2","3.2.3","3.2.4","3.2.5","3.2.6","3.2.7","3.2.8","3.2.9","3.3.0","3.3.1","3.3.10","3.3.11","3.3.12","3.3.13","3.3.2","3.3.3","3.3.4","3.3.5","3.3.6","3.3.7","3.3.8","3.3.9","3.4.0","3.4.1","3.4.10","3.4.2","3.4.3","3.4.4","3.4.5","3.4.6","3.4.7","3.4.8","3.4.9","3.5.0","3.5.1","3.5.10","3.5.11","3.5.2","3.5.3","3.5.4","3.5.5","3.5.6","3.5.7","3.5.8","3.5.9","3.6.0","3.6.1","3.6.2","3.6.3","3.6.4","3.6.5","3.6.6","3.6.7","3.6.8","3.6.9"],"bundled":11}],"products":[{"vendor":"apache","product":"cxf"},{"vendor":"apache software foundation","product":"apache cxf"}],"references":[{"url":"https://lists.apache.org/thread/drcq4chmt0btx86f17o47j17r378hzpw","tags":["vendor-advisory","Mailing List","Vendor Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/08/06/22","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63687","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7hjx-472h-3f7q"},{"url":"https://repo.maven.apache.org/maven2","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63687.json","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57818.json","tags":["advisory"]},{"url":"https://lists.apache.org/thread/7q08mz8bcbosp25wok7gr537zlp15mfz","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57818","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68079.json","tags":["advisory"]},{"url":"https://lists.apache.org/thread/6m06gdqz4rxhy9g90qz9lyqx2gqmf13o","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68079","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68481.json","tags":["advisory"]},{"url":"https://lists.apache.org/thread/88c0h10yjb2b8201o1km3st71fs2zw2b","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68481","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50623.json","tags":["advisory"]},{"url":"https://lists.apache.org/thread/ydzj8m5mqmjy13xgyj9mkk9hfff63qq7","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50623","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-542g-m3fx-q86f","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50627.json","tags":["web"]},{"url":"https://access.redhat.com/errata/RHSA-2026:37390","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-50627","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50627.json","tags":["advisory"]},{"url":"https://lists.apache.org/thread/0jfzz9q992957b99tw7hodcqjfyxwb1m","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50627","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-9mrv-8pvf-hf4m","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50628.json","tags":["web"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-50628","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50628.json","tags":["advisory"]},{"url":"https://lists.apache.org/thread/vb3ho8lf228gh90m1fpnohf2008xrdxk","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50628","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-g5v7-jchf-7jrr","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50629.json","tags":["advisory"]},{"url":"https://lists.apache.org/thread/xw95po30p8th58ms1no6b0f2375cql00","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50629","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-f8p7-h97q-7vx7","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50630.json","tags":["advisory"]},{"url":"https://lists.apache.org/thread/bt7vnjzzkpd6vdhkxv103poor1jy5trm","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50630","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-xf62-wr5p-5p95","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50631.json","tags":["advisory"]},{"url":"https://lists.apache.org/thread/s83t3x4r626o9h8rt0ryr1w7w53l1vv8","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50631","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-83r6-96m8-r52p","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61466.json","tags":["advisory"]},{"url":"https://lists.apache.org/thread/2l1r16g79tpxd7fzrzr2q9oscwrjgljs","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61466","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-63687","title":"Apache CXF: JwtRequestCodeFilter silently overrides outer PKCE and nonce parameters","description":"Apache CXF's JwtRequestCodeFilter copies all claims from a signed request JWT into the authorization parameter map without excluding security-sensitive parameters. A client that can produce a validly-signed request JWT (e.g., one whose client_secret is known or compromised) can thereby substitute the code_challenge, code_challenge_method, nonce, and state values that were set in the outer HTTP request, undermining PKCE integrity and OpenID Connect replay protection. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.","status":"published","published":"2026-08-06T11:23:45.175Z","modified":"2026-08-07T00:01:46.574Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"adp"}],"cwes":["CWE-345"],"updated_at":"2026-11-02T14:19:56.284359Z"}],"euvd":[{"id":"EUVD-2026-53860","description":"Apache CXF's JwtRequestCodeFilter copies all claims from a signed request JWT into the authorization parameter map without excluding security-sensitive parameters. A client that can produce a validly-signed request JWT (e.g., one whose client_secret is known or compromised) can thereby substitute the code_challenge, code_challenge_method, nonce, and state values that were set in the outer HTTP request, undermining PKCE integrity and OpenID Connect replay protection. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.","status":"published","published":"2026-08-06T11:23:45Z","modified":"2026-08-07T00:01:46Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"updated_at":"2026-11-02T18:02:07.757838Z"}],"ghsa":[{"id":"GHSA-7hjx-472h-3f7q","title":"Apache CXF's JwtRequestCodeFilter copies all claims from a signed request JWT into the...","description":"Apache CXF's JwtRequestCodeFilter copies all claims from a signed request JWT into the authorization parameter map without excluding security-sensitive parameters. A client that can produce a validly-signed request JWT (e.g., one whose client_secret is known or compromised) can thereby substitute the code_challenge, code_challenge_method, nonce, and state values that were set in the outer HTTP request, undermining PKCE integrity and OpenID Connect replay protection. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.","status":"published","published":"2026-08-06T12:31:14Z","modified":"2026-08-07T00:31:11Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-345"],"updated_at":"2026-11-02T15:10:10.387883Z"}],"nvd":[{"id":"CVE-2026-63687","description":"Apache CXF's JwtRequestCodeFilter copies all claims from a signed request JWT into the authorization parameter map without excluding security-sensitive parameters. A client that can produce a validly-signed request JWT (e.g., one whose client_secret is known or compromised) can thereby substitute the code_challenge, code_challenge_method, nonce, and state values that were set in the outer HTTP request, undermining PKCE integrity and OpenID Connect replay protection. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.","status":"published","published":"2026-08-06T12:16:27.843Z","modified":"2026-10-24T16:10:00.153Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"secondary"}],"cwes":["CWE-345"],"updated_at":"2026-11-02T14:12:35.031043Z"}],"osv":[{"id":"CVE-2026-63687","title":"Apache CXF: JwtRequestCodeFilter silently overrides outer PKCE and nonce parameters","description":"Apache CXF's JwtRequestCodeFilter copies all claims from a signed request JWT into the authorization parameter map without excluding security-sensitive parameters. A client that can produce a validly-signed request JWT (e.g., one whose client_secret is known or compromised) can thereby substitute the code_challenge, code_challenge_method, nonce, and state values that were set in the outer HTTP request, undermining PKCE integrity and OpenID Connect replay protection. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.","status":"published","published":"2026-08-06T11:23:45.175Z","modified":"2026-10-28T02:30:34.006407592Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-345"],"updated_at":"2026-11-02T15:45:13.306117Z"},{"id":"RHLW-2026-2d8697b26ccd16c3","title":"Lightwell Security Advisory: cxf-rt-rs-security-oauth2 4.2.2.rhlw-00006","description":"Red Hat Lightwell has released org.apache.cxf:cxf-rt-rs-security-oauth2 4.2.2.rhlw-00006 with backported fixes for CVE-2026-57818, CVE-2026-63687, CVE-2026-68079, and CVE-2026-68481.\n\nCVE-2026-57818: Apache CXF: OAuth2 Authorization Code Replay via TOCTOU in JCacheCodeDataProvider\n\nCVE-2026-63687: Apache CXF: JwtRequestCodeFilter silently overrides outer PKCE and nonce parameters\n\nCVE-2026-68079: Apache CXF: DefaultEncryptingCodeDataProvider allows unlimited authorization code replay\n\nCVE-2026-68481: Apache CXF: Revocation bypass in DefaultEncryptingOAuthDataProvider\n\nThis patched artifact is a drop-in replacement for org.apache.cxf:cxf-rt-rs-security-oauth2 4.2.2 from Maven Central.","status":"published","published":"2026-10-13T21:10:22Z","modified":"2026-10-29T14:30:06.255083295Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:58.636919Z"},{"id":"RHLW-2026-fd244c7ea4e4e9e4","title":"Lightwell Security Advisory: cxf-rt-rs-security-oauth2 3.6.9.rhlw-00003","description":"Red Hat Lightwell has released org.apache.cxf:cxf-rt-rs-security-oauth2 3.6.9.rhlw-00003 with backported fixes for CVE-2026-50623, CVE-2026-50627, CVE-2026-50628, CVE-2026-50629, CVE-2026-50630, CVE-2026-50631, CVE-2026-57818, CVE-2026-61466, CVE-2026-63687, CVE-2026-68079, and CVE-2026-68481.\n\nCVE-2026-50623: Apache CXF: Authentication Bypass in OAuth2 TokenIntrospectionService\n\nCVE-2026-50627: Apache CXF: OAuth2: Missing JWT Audience and Issuer Validation in Access Token Validator\n\nCVE-2026-50628: Apache CXF: OAuth2: Inverted IP Binding Check Defeats Security Control\n\nCVE-2026-50629: Apache CXF: OAuth2: Log Injection via Unsanitized Client Identifier\n\nCVE-2026-50630: Apache CXF: OAuth2: HTTP Response Splitting via WWW-Authenticate Realm Injection\n\nCVE-2026-50631: Apache CXF: OAuth2: TOCTOU Race Condition in Refresh Token Processing\n\nCVE-2026-57818: Apache CXF: OAuth2 Authorization Code Replay via TOCTOU in JCacheCodeDataProvider\n\nCVE-2026-61466: Apache CXF: OAuth2 Dynamic Client Registration Scope Self-Escalation\n\nCVE-2026-63687: Apache CXF: JwtRequestCodeFilter silently overrides outer PKCE and nonce parameters\n\nCVE-2026-68079: Apache CXF: DefaultEncryptingCodeDataProvider allows unlimited authorization code replay\n\nCVE-2026-68481: Apache CXF: Revocation bypass in DefaultEncryptingOAuthDataProvider\n\nThis patched artifact is a drop-in replacement for org.apache.cxf:cxf-rt-rs-security-oauth2 3.6.9 from Maven Central.","status":"published","published":"2026-10-13T21:10:18Z","modified":"2026-10-27T04:13:03.043123153Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:52:59.135214Z"},{"id":"CLSA-2026-1794470183","title":"TuxCare security update for org.apache.cxf:cxf-rt-rs-security-oauth2 (1 CVE)","description":"TuxCare rebuilt org.apache.cxf:cxf-rt-rs-security-oauth2 to address 1 CVE. Fixed in 3.0.12-tuxcare.4.","status":"published","published":"2026-11-12T08:56:24Z","modified":"2026-11-12T13:45:05.043894357Z","updated_at":"2026-11-12T13:52:20.648435Z"},{"id":"CLSA-2026-1794499784","title":"TuxCare security update for org.apache.cxf (3 CVEs)","description":"TuxCare rebuilt 2 org.apache.cxf packages to address 3 CVEs. Fixed in 3.5.11-tuxcare.13.","status":"published","published":"2026-11-12T17:09:45Z","modified":"2026-11-12T19:30:04.286090715Z","updated_at":"2026-11-12T19:43:48.38408Z"}]}}