CVE-2026-71959

MEDIUMPre-NVD 5.85.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

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, GitHub Security Advisory, a secondary CVSS source
5.8EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
5.8MEDIUMmedium confidence
EG Risk
41
EG Risk 41/100

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 (value × EchelonGraph’s weight)
Severity58% × 45%
The EG Score, 5.8 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
31st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 10, 2026

Last Modified

September 24, 2026

Advisory Details (5)

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

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
Web page

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 pull request

[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 12× in last 7d / 62× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 154 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 54 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  2. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  4. 2026-10-12 15:42 UTCEG score recompute
  5. 2026-10-11 19:28 UTCEG score recompute
  6. 2026-10-11 16:43 UTCEG score recompute
  7. 2026-10-11 14:03 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  11. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  12. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  13. 2026-10-06 18:22 UTCEG score recompute
  14. 2026-10-06 18:22 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  15. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  16. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  17. 2026-10-05 07:48 UTCEG score recompute
  18. 2026-10-05 07:48 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  19. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  20. 2026-10-04 04:26 UTCEG score recompute
  21. 2026-10-04 04:26 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  22. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  23. 2026-10-02 09:19 UTCEG score recompute
  24. 2026-10-02 09:19 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  25. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 30th percentile
Show 75 more
  1. 2026-09-30 22:36 UTCEG score recompute
  2. 2026-09-30 22:36 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  3. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  4. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  5. 2026-09-28 13:34 UTCEG score recompute
  6. 2026-09-28 13:34 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  7. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  8. 2026-09-27 12:46 UTCEG score recompute
  9. 2026-09-27 12:46 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  10. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  11. 2026-09-24 20:17 UTCEG score recompute
  12. 2026-09-24 20:17 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  13. 2026-09-24 09:16 UTCEG score recompute
  14. 2026-09-24 09:16 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  15. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  16. 2026-09-23 08:28 UTCEG score recompute
  17. 2026-09-23 08:28 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  18. 2026-09-22 07:38 UTCEG score recompute
  19. 2026-09-22 07:38 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  20. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  21. 2026-09-21 06:50 UTCEG score recompute
  22. 2026-09-21 06:50 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  23. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  24. 2026-09-20 03:29 UTCEG score recompute
  25. 2026-09-20 03:29 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  26. 2026-09-19 02:40 UTCEG score recompute
  27. 2026-09-19 02:40 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  28. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  29. 2026-09-18 01:33 UTCEG score recompute
  30. 2026-09-18 01:33 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  31. 2026-09-17 00:45 UTCEG score recompute
  32. 2026-09-17 00:45 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  33. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  34. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  35. 2026-09-15 13:46 UTCEG score recompute
  36. 2026-09-15 13:46 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  37. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  38. 2026-09-14 10:11 UTCEG score recompute
  39. 2026-09-14 10:11 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  40. 2026-09-13 09:07 UTCEG score recompute
  41. 2026-09-13 09:07 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  42. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  43. 2026-09-12 08:19 UTCEG score recompute
  44. 2026-09-12 08:19 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  45. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  46. 2026-09-11 07:28 UTCEG score recompute
  47. 2026-09-11 07:28 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  48. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  49. 2026-09-10 06:40 UTCEG score recompute
  50. 2026-09-10 06:40 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  51. 2026-09-09 05:51 UTCEG score recompute
  52. 2026-09-09 05:51 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  53. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  54. 2026-09-07 17:17 UTCEG score recompute
  55. 2026-09-07 17:17 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  56. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  57. 2026-09-06 05:02 UTCEG score recompute
  58. 2026-09-06 05:02 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  59. 2026-09-05 04:14 UTCEG score recompute
  60. 2026-09-05 04:14 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  61. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  62. 2026-09-04 03:25 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  63. 2026-09-03 02:31 UTCEG score recompute
  64. 2026-09-03 02:31 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  65. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  66. 2026-09-01 15:17 UTCEG score recompute
  67. 2026-09-01 15:17 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  68. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  69. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  70. 2026-08-31 11:51 UTCEG score recompute
  71. 2026-08-31 11:51 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  72. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  73. 2026-08-30 10:53 UTCEG score recompute
  74. 2026-08-30 10:53 UTCGHSA enrichmentGHSA-m2wp-hqw2-j56m · GitHub CVSS 5.8
  75. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 21st percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-71959?
CVE-2026-71959 is a medium-severity vulnerability; its CVE record was 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 made public?
CVE-2026-71959 was made public on July 7, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on August 10, 2026. EchelonGraph's copy of the record carries a last-modified date of September 24, 2026; the record at its source may have been updated since.
Is CVE-2026-71959 actively exploited?
CVE-2026-71959 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (31st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-71959?
CVE-2026-71959 has a CVSS base score of 5.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-71959?
A fix for CVE-2026-71959 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-71959 are linked in the Vendor Advisories panel on this page.

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