CVE-2026-95667

MEDIUMPre-NVD 6.96.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (6th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
6.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The MISP installer scripts (for Debian 12, Debian 13, Ubuntu 24.04, and RHEL 9.4) create a log file at /var/log/misp_install.log and a named pipe (FIFO) at /var/log/misp_install.log.pipe to capture all installer output. The log captures highly sensitive data including the generated admin password, database passwords, GPG passphrase, and supervisor password. However, the log file was created by the tee command under the system default umask, resulting in world-readable permissions (typically 0644). Similarly, the FIFO was created with mkfifo without an explicit mode, also inheriting the default umask and remaining world-readable during the window before it was unlinked. 

Any local unprivileged user on the system could read the log file or the FIFO to obtain these credentials. 

Additionally, the log file was not removed before creation, meaning a pre-existing symlink in /var/log could have been used to redirect the write to an arbitrary location.

Version affected: <2.5.47

CVSS v3
6.9
EG Score
6.9MEDIUMmedium confidence
EG Risk
31
EG Risk 31/100CISA SSVC

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
Severity69% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
6th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 22, 2026

Last Modified

September 22, 2026

Advisory Details (1)

Auto-updated Sep 22, 2026
Patch available. Sources: github_commit.
github_commit Patch Available

commit d5d72ab38 (MISP/MISP)

Patch available: MISP/MISP v2.5.47 (contains commit d5d72ab38)

https://github.com/MISP/MISP/commit/d5d72ab38

Vendor Advisories for CVE-2026-95667(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 37× 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. 2026-10-04 08:04 UTCEG score recompute
  2. 2026-10-04 08:04 UTCGHSA enrichment
  3. 2026-10-03 14:26 UTCEPSS rescore
  4. 2026-10-03 06:39 UTCEG score recompute
  5. 2026-10-03 06:39 UTCGHSA enrichment
  6. 2026-10-02 17:57 UTCEPSS rescore
  7. 2026-10-02 05:14 UTCEG score recompute
  8. 2026-10-02 05:14 UTCGHSA enrichment
  9. 2026-10-01 19:51 UTCEPSS rescore
  10. 2026-10-01 03:45 UTCEG score recompute
  11. 2026-10-01 03:45 UTCGHSA enrichment
  12. 2026-09-30 15:04 UTCEPSS rescore
  13. 2026-09-30 02:20 UTCEG score recompute
  14. 2026-09-30 02:20 UTCGHSA enrichment
  15. 2026-09-29 00:55 UTCEG score recompute
  16. 2026-09-29 00:55 UTCGHSA enrichment
  17. 2026-09-28 13:52 UTCEPSS rescore
  18. 2026-09-28 13:52 UTCEPSS rescore
  19. 2026-09-27 23:30 UTCEG score recompute
  20. 2026-09-27 23:30 UTCGHSA enrichment
  21. 2026-09-27 13:49 UTCEPSS rescore
  22. 2026-09-26 22:05 UTCEG score recompute
  23. 2026-09-26 22:05 UTCGHSA enrichment
  24. 2026-09-26 15:59 UTCEPSS rescore
  25. 2026-09-25 20:41 UTCGHSA enrichment
Show 12 more
  1. 2026-09-24 19:11 UTCEG score recompute
  2. 2026-09-24 19:11 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-23 17:46 UTCGHSA enrichment
  6. 2026-09-22 16:21 UTCEG score recompute
  7. 2026-09-22 16:21 UTCGHSA enrichment
  8. 2026-09-22 15:40 UTCEG score recompute
  9. 2026-09-22 15:40 UTCGHSA enrichment
  10. 2026-09-22 14:19 UTCEG score recompute
  11. 2026-09-22 13:27 UTCEG score recompute
  12. 2026-09-22 13:25 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-95667?
CVE-2026-95667 is a medium vulnerability published on September 22, 2026. The MISP installer scripts (for Debian 12, Debian 13, Ubuntu 24.04, and RHEL 9.4) create a log file at /var/log/mispinstall.log and a named pipe (FIFO) at /var/log/mispinstall.log.pipe to capture all installer output. The log captures highly sensitive data including the generated admin password,…
When was CVE-2026-95667 disclosed?
CVE-2026-95667 was first published on September 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-95667 actively exploited?
CVE-2026-95667 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-95667?
CVE-2026-95667 has a CVSS base score of 6.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-95667?
A fix for CVE-2026-95667 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-95667 are linked in the Vendor Advisories panel on this page.

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