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TI-2026-50254 Aliases CVE-2026-71959GHSA-m2wp-hqw2-j56m

Bitwarden Server < 2026.7.2 Audit Log Injection via POST /collect

Priority LOW 37CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

Bitwarden Server before 2026.7.2 does not verify that the caller is a member of the organization identified in a POST /collect request body, allowing any authenticated user to write forged, arbitrarily backdated entries into any organization's audit log.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00476 41st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed server (bitwarden): 2026.7.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
bitwardenserverbefore 2026.7.22026.7.2Patch availableCNA
  • server Vendorbitwarden Affected before 2026.7.2 Fixed in 2026.7.2 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:bitwarden:server:*:*:*:*:*:*:*:*——bitwarden
  • cpe:2.3:a:bitwarden:server:*:*:*:*:*:*:*:* Versions — — ·bitwarden

Remediation

  • Fix · CNA server (bitwarden) Fixed in 2026.7.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-71959
  2. 2026-10-03 Alias added: GHSA-m2wp-hqw2-j56m

References

Exploit 1

Patch 2

Other 1

  • TI-2026-42828 Bitwarden Server < 2026.6.0 Authorization Bypass via Admin Auth Request CVSS 4.0CRITICAL 9.3
  • TI-2026-31741 Bitwarden Server < 2026.4.0 Missing Authorization via Provider Clients CVSS 4.0HIGH 8.9
  • TI-2026-31742 Bitwarden Server < 2026.4.1 Authentication Bypass via SCIM API Key CVSS 4.0HIGH 8.6
  • TI-2026-65186 Bitwarden Server 2025.6.0 < 2025.6.0 Authentication Bypass via SSO Identifier Truncation CVSS 4.0HIGH 7.7
  • TI-2023-12564 Bitwarden through 2023.2.1 offers password auto-fill when the second-level domain… CVSS 3.1HIGH 7.5
  • TI-2023-12369 Bitwarden Windows desktop application versions prior to v2023.4.0 store biometric keys in… CVSS 3.1HIGH 7.1
See all 16 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences