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01 Record

CVE-2026-107589

Authentication Bypass by Spoofing in Jacamar CI

HighPUBLISHEDCNA: GitLab
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L

02 Description

Authentication Bypass by Spoofing in Jacamar CI

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.11% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 1.2% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L
NVD analysis status
Deferred. NVD last modified this record on 2026-10-08.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-08 15:11Z20 DAYS AGO
Last updated
2026-10-08 19:14Z20 DAYS AGO
Reserved
2026-10-08
Assigning CNA
GitLab
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L
Weaknesses
  • CWE-290Authentication Bypass by SpoofingBase
Data version
5.2
Document digest
fbfa2193f50d88710252d0730901a7198b65c82e8610633dba9e9763ec0dd59f

05 Affected products

VendorProductVersionsPlatforms
Jacamar CIJacamar CI0 to < 0.30.0—

06 References

07 Remediation

This issue presents a serious risk to all versions of Jacamar CI prior to v0.30.0 when used with GitLab Server v13.11 or later, or with v13.10 when the `allow_projects_to_create_service_accounts` feature flag enabled. If you are unable to immediately upgrade to the latest release, you can mitigate the risk by restricting the allowed accounts or groups in the configuration, or by using the RunAs validation script to check for bot accounts. Please see the release notes for a complete example.