Security Digest · Vulnerability record
CVE-2024-47807: Jenkins OpenId Connect Authentication Plugin lacks issuer claim validation
Jenkins OpenId Connect Authentication Plugin 4.354.v321ce67a1de8 and earlier does not check the iss (Issuer) claim of an ID Token, allowing attackers to subvert the authentication flow, potentially gaining administrator access to Jenkins.
CVSS 9.2 Critical EPSS 0.6% · p50
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.6%, percentile 50: FIRST’s model estimates a 0.6% chance of exploitation activity in the next 30 days, higher than 50% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes
org.jenkins-ci.plugins:oic-auth(Maven) < 4.355.v3a, fixed in 4.355.v3a. Check your lockfile, including transitive dependencies.
What it is
Jenkins OpenId Connect Authentication Plugin 4.354.v321ce67a1de8 and earlier does not check the iss (Issuer) claim of an ID Token, allowing attackers to subvert the authentication flow, potentially gaining administrator access to Jenkins.
From the GitHub advisory
Jenkins OpenId Connect Authentication Plugin 4.354.v321ce67a1de8 and earlier does not check the iss (Issuer) claim of an ID Token during its authentication flow, a value that identifies the Originating Party (IdP).
This vulnerability may allow attackers to subvert the authentication flow, potentially gaining administrator access to Jenkins.
OpenId Connect Authentication Plugin 4.355.v3afbfcab96d4 checks the iss (Issuer) claim of an ID Token during its authentication flow when the Issuer is known.
Weakness type: CWE-287.
Product: org.jenkins-ci.plugins:oic-auth (Maven) · Assigned by: jenkins · Published: 2024-10-02
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| Maven | org.jenkins-ci.plugins:oic-auth | < 4.355.v3a | 4.355.v3a |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| Jenkins Project | Jenkins OpenId Connect Authentication Plugin | <= 4.354.v321ce67a_1de8 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADP | 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 4.0 | 9.2 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Attack requirements: present (depends on deployment conditions)
- Privileges required: none (no login)
- User interaction: none
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none, automatable no, technical impact total.
- FIRST EPSS (model of 2026-10-21): 0.63% probability of exploitation activity in the next 30 days; percentile 50.
Timeline
- — CVE record last updated
- — CVE record published by jenkins
- — GitHub-reviewed advisory GHSA-8pjw-fff6-3mjv published (critical)
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- Jenkins Security Advisory 2024-10-02 jenkins.io
Vulnerability records
- GitHub Advisory GHSA-8pjw-fff6-3mjv github.com
- CVE.org record CVE-2024-47807 cve.org
- NVD entry CVE-2024-47807 nvd.nist.gov