VIR Vulnerability Intelligence Relay

CVE-2026-91039

unknown EU-CRITICAL
EUVD alias: EUVD-2026-81687
Assigned by CNA: eef
Published 2026-09-17 · Modified 2026-09-17
Discuss on Community Propose mitigation
CVSS v3
—
CVSS v4 NEW
9.1
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
VIR risk
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Description

dynamic_oidc identities are not namespaced by connection in ash_authentication, allowing cross-connection account takeover

Predictions

Exploit likelihood
20%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact
EcosystemPackageVulnerableFixed
Hexash_authentication>=5.0.0-rc.10,<5.0.0-rc.145.0.0-rc.14

References

CWEs

CWE-290

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.