CVE-2026-71959

MEDIUMPre-NVD 5.85.8—
EchelonGraph scoreHIGH confidence

Score 5.8 from GitHub Security Advisory published 2026-08-10. a secondary CVSS source baseline 5.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.8Exploit: None knownExposed: 0

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

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.

CVSS v3
5.8
EG Score
5.8(high)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity58% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 17, 2026

Advisory Details (5)

Auto-updated Aug 10, 2026
Patch available. Sources: github_commit, github_pr, github_release.
generic

Bitwarden Server < 2026.7.2 Audit Log Injection via POST /collect | Advisories | VulnCheck

https://www.vulncheck.com/advisories/bitwarden-server-audit-log-injection-via-post-collect
generic

Sanjok Karki | Offensive Security Engineer

https://sanjokkarki.com.np/blog/bitwarden-audit-log-forgery
github_release Patch Available

Version 2026.7.2

Patch available: bitwarden/server v2026.7.2

https://github.com/bitwarden/server/releases/tag/v2026.7.2
github_pr

[PM-38773] Require org membership before logging org audit events via /collect

Fix merged in bitwarden/server PR #7934 on 2026-07-13 — awaiting tagged release

https://github.com/bitwarden/server/pull/7934
github_commit

commit 2aa92a3c8675 (bitwarden/server)

Fix landed in bitwarden/server commit 2aa92a3c8675 — awaiting tagged release

https://github.com/bitwarden/server/commit/2aa92a3c8675a28e305e8207ff16592227f96291

Vendor Advisories for CVE-2026-71959(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 24× in last 7d / 34× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 22:15 UTCGHSA enrichment
  3. 2026-08-19 21:26 UTCEG score recompute
  4. 2026-08-19 21:25 UTCGHSA enrichment
  5. 2026-08-19 17:04 UTCEPSS rescore
  6. 2026-08-18 20:20 UTCEG score recompute
  7. 2026-08-18 20:19 UTCGHSA enrichment
  8. 2026-08-18 13:49 UTCEPSS rescore
  9. 2026-08-18 13:49 UTCEPSS rescore
  10. 2026-08-17 19:28 UTCEG score recompute
  11. 2026-08-17 19:28 UTCGHSA enrichment
  12. 2026-08-17 18:36 UTCEG score recompute
  13. 2026-08-17 18:36 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-16 18:49 UTCEG score recompute
  16. 2026-08-16 18:49 UTCGHSA enrichment
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 02:15 UTCEPSS rescore
  20. 2026-08-15 17:58 UTCEG score recompute
  21. 2026-08-15 17:58 UTCGHSA enrichment
  22. 2026-08-15 01:31 UTCEPSS rescore
  23. 2026-08-14 17:10 UTCEG score recompute
  24. 2026-08-14 17:10 UTCGHSA enrichment
  25. 2026-08-13 22:00 UTCEPSS rescore
Show 9 more
  1. 2026-08-13 16:54 UTCGHSA enrichment
  2. 2026-08-12 16:06 UTCEG score recompute
  3. 2026-08-12 16:06 UTCGHSA enrichment
  4. 2026-08-12 13:51 UTCEPSS rescore
  5. 2026-08-11 15:18 UTCEG score recompute
  6. 2026-08-11 15:18 UTCGHSA enrichment
  7. 2026-08-10 14:29 UTCEG score recompute
  8. 2026-08-10 14:06 UTCEG score recompute
  9. 2026-08-10 14:05 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-71959?
CVE-2026-71959 is a medium vulnerability published on August 10, 2026. 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.
When was CVE-2026-71959 disclosed?
CVE-2026-71959 was first published in the National Vulnerability Database on August 10, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71959 actively exploited?
CVE-2026-71959 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 78.4% of all scored CVEs.
What is the CVSS score of CVE-2026-71959?
CVE-2026-71959 has a CVSS v3 base score of 5.8 (NVD).
How do I remediate CVE-2026-71959?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71959, 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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