← Vulnerability feed

Vulnerability record · CVE-2026-70429 · published 5 August 2026

CVE-2026-70429: Jenkins vulnerability

Jenkins · Jenkins

Jenkins 2.575 and earlier, LTS 2.568.1 and earlier handles case-insensitivity in user names and group names inconsistently, allowing attackers able to create new users or groups with names that case-insensitively match other characters to impersonate other users or be granted their permissions in some circumstances.

6.5 CVSS 3.1 Medium EPSS 0.42% · top 65.7% CWE-178 · CWE-178
6.5CVSS 3.1 base score
0.42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
8 Sep 2026Last modified by NVD

Description

Jenkins 2.575 and earlier, LTS 2.568.1 and earlier handles case-insensitivity in user names and group names inconsistently, allowing attackers able to create new users or groups with names that case-insensitively match other characters to impersonate other users or be granted their permissions in some circumstances.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.jenkins.io/security/advisory/2026-08-05/#SECURITY-3924 Vendor Advisory

Track CVE-2026-70429 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-23897Jenkins CLI parser arbitrary file read via @ path expansionJenkins 2.441 and earlier, and LTS 2.426.2 and earlier, fails to disable a CLI command parser feature that replaces an '@' character followed by a fi…KEVEPSS 100%analysed9.8CVE-2018-1000861Jenkins Stapler framework URL routing allows remote code executionThe Stapler web framework in Jenkins 2.153 and earlier and LTS 2.138.3 and earlier lets attackers invoke unintended Java methods by requesting crafte…KEVEPSS 98%analysed9.8CVE-2017-1000353Jenkins CLI Java deserialization allows unauthenticated remote code executionJenkins 2.56 and earlier, and 2.46.1 LTS and earlier, deserialize attacker-supplied Java SignedObject data sent to the Jenkins CLI, bypassing the exi…KEVEPSS 100%analysed7.5CVE-2023-44487HTTP/2 Rapid Reset stream cancellation denial of serviceThe HTTP/2 protocol permits a client to cancel many streams quickly, and the server's handling of those resets consumes disproportionate resources. T…KEVEPSS 100%analysed7.5CVE-2015-5317Jenkins Fingerprints pages expose job and build namesJenkins before 1.638 and LTS before 1.625.2 expose sensitive job and build name information through the Fingerprints pages when requested directly. T…KEVEPSS 23%analysed9.8CVE-2021-21690Jenkins path traversal vulnerabilityAgent processes are able to completely bypass file path filtering by wrapping the file operation in an agent file path in Jenkins 2.318 and earlier, …EPSS 2.5%9.8CVE-2021-21693Jenkins incorrect authorization vulnerabilityWhen creating temporary files, agent-to-controller access to create those files is only checked after they've been created in Jenkins 2.318 and earli…EPSS 1.6%9.8CVE-2021-21691Jenkins link following vulnerabilityCreating symbolic links is possible without the 'symlink' agent-to-controller access control permission in Jenkins 2.318 and earlier, LTS 2.303.2 and…EPSS 2.1%

Source: NIST National Vulnerability Database (record CVE-2026-70429), CISA KEV, FIRST EPSS (scores of 2026-10-12). This page is refreshed as NVD updates the record.