CVE-2026-91993

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-09-15. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Jpom through 2.11.12 fails to validate workspace ownership when resolving repositoryId on the /build/branch-list endpoint, allowing authenticated users to access repositories from other workspaces. Attackers can submit repository identifiers from different workspaces to enumerate repository existence, determine repository type, and execute git ls-remote commands using other workspaces' stored credentials.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity43% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

September 15, 2026

Last Modified

September 17, 2026

Advisory Details (4)

Auto-updated Sep 15, 2026
No patch confirmed yet.
generic

Jpom through 2.11.12 Workspace Isolation Bypass via /build/branch-list | Advisories | VulnCheck

https://www.vulncheck.com/advisories/jpom-through-2.11.12-workspace-isolation-bypass-via-build-branch-list
generic

GitHub - dromara/Jpom: 【dromara】🚀简而轻的低侵入式在线构建、自动部署、日常运维、项目监控软件 · GitHub

https://github.com/dromara/Jpom
generic

Jpom/modules/server/src/main/java/org/dromara/jpom/controller/build/BuildInfoController.java at v2.11.12 · dromara/Jpom · GitHub

https://github.com/dromara/Jpom/blob/v2.11.12/modules/server/src/main/java/org/dromara/jpom/controller/build/BuildInfoController.java#L436-L454
generic

Cross-Workspace Repository IDOR via `/build/branch-list` Missing Ownership Check · Issue #115 · dromara/Jpom · GitHub

https://github.com/dromara/Jpom/issues/115

Vendor Advisories for CVE-2026-91993(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 17:47 UTCGHSA enrichment
  3. 2026-09-19 18:41 UTCEG score recompute
  4. 2026-09-19 18:41 UTCGHSA enrichment
  5. 2026-09-18 19:35 UTCEG score recompute
  6. 2026-09-18 19:35 UTCGHSA enrichment
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-17 20:29 UTCEG score recompute
  9. 2026-09-17 20:29 UTCGHSA enrichment
  10. 2026-09-17 19:39 UTCEG score recompute
  11. 2026-09-17 19:39 UTCGHSA enrichment
  12. 2026-09-17 19:32 UTCEPSS rescore
  13. 2026-09-17 10:46 UTCEG score recompute
  14. 2026-09-17 10:46 UTCGHSA enrichment
  15. 2026-09-16 14:09 UTCEPSS rescore
  16. 2026-09-16 11:37 UTCEG score recompute
  17. 2026-09-16 11:37 UTCGHSA enrichment
  18. 2026-09-15 12:30 UTCEG score recompute
  19. 2026-09-15 11:43 UTCEG score recompute
  20. 2026-09-15 11:42 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-91993?
CVE-2026-91993 is a medium vulnerability published on September 15, 2026. Jpom through 2.11.12 fails to validate workspace ownership when resolving repositoryId on the /build/branch-list endpoint, allowing authenticated users to access repositories from other workspaces. Attackers can submit repository identifiers from different workspaces to enumerate repository…
When was CVE-2026-91993 disclosed?
CVE-2026-91993 was first published in the National Vulnerability Database on September 15, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-91993 actively exploited?
CVE-2026-91993 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 83.2% of all scored CVEs.
What is the CVSS score of CVE-2026-91993?
CVE-2026-91993 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-91993?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-91993, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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