01 Record
CVE-2026-71959
Bitwarden Server < 2026.7.2 Audit Log Injection via POST /collect
MediumPUBLISHEDCNA: VulnCheck
CNA base score6.9 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N
02 Description
Bitwarden Server < 2026.7.2 Audit Log Injection via POST /collect
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.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.47% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 40.8% of scored records. A rank, not a probability.
- NVD base score
- 6.9 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/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
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-24.
- 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
- 2026-08-10 13:56Z2 MO AGO
- Last updated
- 2026-08-17 18:18Z2 MO AGO
- Reserved
- 2026-08-08
- Assigning CNA
- VulnCheck
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.9)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N
- Weaknesses
- CWE-862Missing AuthorizationClass
- Data version
- 5.2
- Document digest
- 4dfe1f9014f6d095508d1f3ed84846d1b2898a727f0d2f5b6e1304029deb4b9c
05 Affected products
VendorProductVersionsPlatforms
06 References
- sanjokkarki.com.npResearcher Bloghttps://sanjokkarki.com.np/blog/bitwarden-audit-log-forgery
- github.comRelease Noteshttps://github.com/bitwarden/server/releases/tag/v2026.7.2
- github.comPull Requesthttps://github.com/bitwarden/server/pull/7934
- github.comPatch Commithttps://github.com/bitwarden/server/commit/2aa92a3c8675a28e305e8207ff16592227f96291
- www.vulncheck.comhttps://www.vulncheck.com/advisories/bitwarden-server-audit-log-injection-via-post-collect