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Publish Advisories
GHSA-9p56-p6mw-w8qc GHSA-rj35-4m94-77jh GHSA-9p56-p6mw-w8qc
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‎advisories/github-reviewed/2025/12/GHSA-9p56-p6mw-w8qc/GHSA-9p56-p6mw-w8qc.json‎

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{
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"schema_version": "1.4.0",
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"id": "GHSA-9p56-p6mw-w8qc",
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"modified": "2025-12-10T20:05:52Z",
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"published": "2025-12-10T18:30:26Z",
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"aliases": [
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"CVE-2025-67635"
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],
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"summary": "Jenkins has a Denial of service vulnerability in HTTP-based CLI",
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"details": "Jenkins 2.540 and earlier, LTS 2.528.2 and earlier does not properly close HTTP-based CLI connections when the connection stream becomes corrupted, allowing unauthenticated attackers to cause a denial of service.",
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"severity": [
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{
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"type": "CVSS_V3",
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"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
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}
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],
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"affected": [
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{
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"package": {
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"ecosystem": "Maven",
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"name": "org.jenkins-ci.main:jenkins-core"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "2.529"
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},
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{
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"fixed": "2.541"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "Maven",
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"name": "org.jenkins-ci.main:cli"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "2.529"
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},
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{
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"fixed": "2.541"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "Maven",
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"name": "org.jenkins-ci.main:jenkins-core"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "0"
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},
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{
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"fixed": "2.528.3"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "Maven",
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"name": "org.jenkins-ci.main:cli"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "0"
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},
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{
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"fixed": "2.528.3"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"type": "ADVISORY",
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-67635"
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},
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{
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"type": "WEB",
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"url": "https://github.com/jenkinsci/jenkins/commit/efa1816322026f2b9235a27eee814bcc7ba0a764"
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},
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{
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"type": "PACKAGE",
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"url": "https://github.com/jenkinsci/jenkins"
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},
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{
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"type": "WEB",
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"url": "https://www.jenkins.io/security/advisory/2025-12-10/#SECURITY-3630"
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}
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],
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"database_specific": {
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"cwe_ids": [
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"CWE-404"
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],
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"severity": "HIGH",
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"github_reviewed": true,
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"github_reviewed_at": "2025-12-10T20:05:52Z",
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"nvd_published_at": "2025-12-10T17:15:55Z"
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}
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}

‎advisories/github-reviewed/2025/12/GHSA-rj35-4m94-77jh/GHSA-rj35-4m94-77jh.json‎

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{
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"schema_version": "1.4.0",
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"id": "GHSA-rj35-4m94-77jh",
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"modified": "2025-12-05T18:12:51Z",
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"modified": "2025-12-10T20:03:48Z",
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"published": "2025-12-05T18:12:51Z",
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"aliases": [
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"CVE-2025-64763"
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],
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"summary": "Envoy forwards early CONNECT data in TCP proxy mode",
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"details": "## Summary\n\nForwarding of early CONNECT data in TCP proxy mode.\n\n## Details\n\nPer [RFC 7231-4.3.6](https://www.rfc-editor.org/rfc/rfc7231#section-4.3.6) the sender of CONNECT (and all inbound proxies) switch to tunnel mode only after receiving 2xx response. However in TCP proxy mode, Envoy accepts client data before it has issued a 2xx response and eagerly proxies it to an established TCP connection. This creates possibility of a de-synchronized tunnel state if a proxy upstream from Envoy responds with a status other an 2xx.\n\nThe RFC does not specify the behavior in case an early CONNECT data is received and early CONNECT data is common as a latency reduction mechanism. To prevent disruption to existing deployments Envoy will by default allow early CONNECT data. Setting the `envoy.reloadable_features.reject_early_connect_data` runtime flag to `true` will cause CONNECT requests that send data before 2xx response to be rejected. This options should be enabled if there are intermediaries upstream from Envoy that may reject establishment of a CONNECT tunnel. \n\n## Impact\n\nDe-synchronization of CONNECT tunnel state if a forwarding proxy upstream from Envoy responds with a non 2xx status.\n\n## Attack vector(s)\nSending data for a CONNECT request before receiving 2xx response.\n\n## Patches\nUsers should upgrade to v1.36.3, v1.35.7, v1.34.11 or v1.33.13\n\n## Credits\n\nPatrick Smith ([email protected])",
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"details": "## Summary\n\nForwarding of early CONNECT data in TCP proxy mode.\n\n## Details\n\nPer [RFC 7231-4.3.6](https://www.rfc-editor.org/rfc/rfc7231#section-4.3.6) the sender of CONNECT (and all inbound proxies) switch to tunnel mode only after receiving 2xx response. However in TCP proxy mode, Envoy accepts client data before it has issued a 2xx response and eagerly proxies it to an established TCP connection. This creates possibility of a de-synchronized tunnel state if a proxy upstream from Envoy responds with a status other an 2xx.\n\nThe RFC does not specify the behavior in case an early CONNECT data is received and early CONNECT data is common as a latency reduction mechanism. To prevent disruption to existing deployments Envoy will by default allow early CONNECT data. Setting the `envoy.reloadable_features.reject_early_connect_data` runtime flag to `true` will cause CONNECT requests that send data before 2xx response to be rejected. This options should be enabled if there are intermediaries upstream from Envoy that may reject establishment of a CONNECT tunnel. \n\n## Impact\n\nDe-synchronization of CONNECT tunnel state if a forwarding proxy upstream from Envoy responds with a non 2xx status.\n\n## Attack vector(s)\nSending data for a CONNECT request before receiving 2xx response.\n\n## Patches\nUsers should upgrade to v1.36.3, v1.35.7, v1.34.11 or v1.33.13\n\n## Credits\n\n[chasingimpact](https://github.com/chasingimpact) (Patrick)",
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"severity": [
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{
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"type": "CVSS_V3",

‎advisories/unreviewed/2025/12/GHSA-9p56-p6mw-w8qc/GHSA-9p56-p6mw-w8qc.json‎

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