CVE-2026-88924

HIGHPre-NVD 7.07.0—
EchelonGraph scoreHIGH confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-09-10. a secondary CVSS source baseline 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.0Exploit: Elevated riskExposed: 0

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

A flaw was found in the admin backend of gvfs. The privileged gvfsd-admin daemon changes the ownership of newly created private D-Bus sockets by calling the link-following chown() function on a pathname inside a user-controlled directory. A local attacker can exploit this via a Time-of-Check Time-of-Use (TOCTOU) race condition and exchange the socket pathname with a symbolic link pointing to an arbitrary root-owned file (such as /etc/pam.d/su). The daemon subsequently follows the symlink and changes the ownership of the targeted root-owned file to the attacker's user ID. This allows an authenticated local attacker to modify critical system files, leading to a full local privilege escalation to root.

CVSS v3
7.0
EG Score
7.0(high)
EG Risk
48(Track*)
EG Risk 48/100SSVC: 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
Severity70% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 11, 2026

Advisory Details (3)

Auto-updated Sep 10, 2026
🔬 Proof of concept available. Patch available. Sources: redhat.
generic🟡 PoC Available

GVfs admin socket ownership race permits local root (#875) · Issues · GNOME / gvfs · GitLab

https://gitlab.gnome.org/GNOME/gvfs/-/issues/875
redhat

2531456 – (CVE-2026-88924) CVE-2026-88924 gvfs: gvfs-admin socket ownership race permits local root

https://bugzilla.redhat.com/show_bug.cgi?id=2531456
redhat Patch Available

CVE-2026-88924 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-88924

Vendor Advisories for CVE-2026-88924(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 27× in last 7d / 49× 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. 2026-09-19 22:29 UTCEG score recompute
  2. 2026-09-19 22:28 UTCGHSA enrichment
  3. 2026-09-19 11:13 UTCGHSA enrichment
  4. 2026-09-18 23:58 UTCEG score recompute
  5. 2026-09-18 23:58 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 12:43 UTCGHSA enrichment
  8. 2026-09-18 01:28 UTCEG score recompute
  9. 2026-09-18 01:28 UTCGHSA enrichment
  10. 2026-09-17 19:32 UTCEPSS rescore
  11. 2026-09-17 14:12 UTCGHSA enrichment
  12. 2026-09-17 02:54 UTCGHSA enrichment
  13. 2026-09-16 15:38 UTCEG score recompute
  14. 2026-09-16 15:38 UTCGHSA enrichment
  15. 2026-09-16 14:09 UTCEPSS rescore
  16. 2026-09-16 05:15 UTCEPSS rescore
  17. 2026-09-16 04:23 UTCGHSA enrichment
  18. 2026-09-15 16:49 UTCGHSA enrichment
  19. 2026-09-15 05:34 UTCEG score recompute
  20. 2026-09-15 05:34 UTCGHSA enrichment
  21. 2026-09-15 03:12 UTCEPSS rescore
  22. 2026-09-14 18:15 UTCGHSA enrichment
  23. 2026-09-14 06:42 UTCGHSA enrichment
  24. 2026-09-13 19:27 UTCEG score recompute
  25. 2026-09-13 19:27 UTCGHSA enrichment
Show 24 more
  1. 2026-09-13 16:48 UTCEPSS rescore
  2. 2026-09-13 08:11 UTCGHSA enrichment
  3. 2026-09-12 20:57 UTCEG score recompute
  4. 2026-09-12 20:57 UTCGHSA enrichment
  5. 2026-09-12 15:02 UTCEPSS rescore
  6. 2026-09-12 09:42 UTCGHSA enrichment
  7. 2026-09-11 22:27 UTCEG score recompute
  8. 2026-09-11 22:27 UTCGHSA enrichment
  9. 2026-09-11 14:53 UTCEPSS rescore
  10. 2026-09-11 14:53 UTCEPSS rescore
  11. 2026-09-11 14:23 UTCEG score recompute
  12. 2026-09-11 14:23 UTCGHSA enrichment
  13. 2026-09-11 13:25 UTCEG score recompute
  14. 2026-09-11 13:25 UTCGHSA enrichment
  15. 2026-09-11 07:15 UTCGHSA enrichment
  16. 2026-09-10 20:00 UTCEG score recompute
  17. 2026-09-10 20:00 UTCGHSA enrichment
  18. 2026-09-10 18:22 UTCEG score recompute
  19. 2026-09-10 18:22 UTCGHSA enrichment
  20. 2026-09-10 17:40 UTCEG score recompute
  21. 2026-09-10 17:40 UTCGHSA enrichment
  22. 2026-09-10 15:20 UTCEG score recompute
  23. 2026-09-10 14:45 UTCEG score recompute
  24. 2026-09-10 14:44 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-88924?
CVE-2026-88924 is a high vulnerability published on September 10, 2026. A flaw was found in the admin backend of gvfs. The privileged gvfsd-admin daemon changes the ownership of newly created private D-Bus sockets by calling the link-following chown() function on a pathname inside a user-controlled directory. A local attacker can exploit this via a Time-of-Check…
When was CVE-2026-88924 disclosed?
CVE-2026-88924 was first published in the National Vulnerability Database on September 10, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-88924 actively exploited?
CVE-2026-88924 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 93.1% of all scored CVEs.
What is the CVSS score of CVE-2026-88924?
CVE-2026-88924 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2026-88924?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-88924, 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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