OpenAI Codex CLI for Windows, macOS, and Linux and Codex Desktop for Windows and macOS automatically collected Git repository metadata without disabling the repository-local core.fsmonitor setting. If a user opens or uses an attacker-prepared repository whose preserved .git/config sets core.fsmonitor to an attacker-controlled filesystem-monitor helper, Git can execute that helper while Codex collects repository metadata. The helper runs outside Codex's command sandbox and without a user-approval prompt, allowing attacker-controlled code to run with the user's privileges. The code can read, change, or delete the user's files and access other resources available to the user's account. An ordinary Git clone does not preserve the source repository's local .git/config; exploitation requires a repository delivered or copied with that configuration intact.
CVE-2026-19592
Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-09-01. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.3; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.3
- EG Score
- 7.3(high)
- EG Risk
- 49(Track*)EG Risk 49/100SSVC: 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 computedSeverity73% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS PROB
- 0%
- EPSS %ILE
- 1%
- KEV
- Not listed
Published
September 1, 2026
Last Modified
September 2, 2026
Advisory Details (1)
Auto-updated Sep 2, 2026[codex] Ignore fsmonitor config in Git metadata reads
Fix merged in openai/codex PR #22652 on 2026-05-14 — awaiting tagged release
https://github.com/openai/codex/pull/22652Vendor Advisories for CVE-2026-19592(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 21× in last 7d / 68× 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.
- 2026-09-19 05:39 UTCEG score recompute
- 2026-09-19 05:38 UTCGHSA enrichment
- 2026-09-18 19:27 UTCEPSS rescore
- 2026-09-18 18:40 UTCGHSA enrichment
- 2026-09-18 07:42 UTCGHSA enrichment
- 2026-09-17 20:43 UTCEG score recompute
- 2026-09-17 20:43 UTCGHSA enrichment
- 2026-09-17 08:25 UTCGHSA enrichment
- 2026-09-16 21:22 UTCEG score recompute
- 2026-09-16 21:22 UTCGHSA enrichment
- 2026-09-16 14:07 UTCEPSS rescore
- 2026-09-16 10:24 UTCGHSA enrichment
- 2026-09-15 23:25 UTCGHSA enrichment
- 2026-09-15 12:16 UTCEG score recompute
- 2026-09-15 12:16 UTCGHSA enrichment
- 2026-09-15 01:15 UTCGHSA enrichment
- 2026-09-14 14:17 UTCGHSA enrichment
- 2026-09-14 03:19 UTCGHSA enrichment
- 2026-09-13 16:21 UTCGHSA enrichment
- 2026-09-13 05:23 UTCGHSA enrichment
- 2026-09-12 18:25 UTCGHSA enrichment
- 2026-09-12 07:27 UTCGHSA enrichment
- 2026-09-11 20:29 UTCEG score recompute
- 2026-09-11 20:29 UTCGHSA enrichment
- 2026-09-11 14:52 UTCEPSS rescore
Show 43 moreShow fewer
- 2026-09-11 09:36 UTCEPSS rescore
- 2026-09-11 09:31 UTCGHSA enrichment
- 2026-09-10 22:33 UTCGHSA enrichment
- 2026-09-10 11:35 UTCEG score recompute
- 2026-09-10 11:35 UTCGHSA enrichment
- 2026-09-10 09:34 UTCEPSS rescore
- 2026-09-09 23:36 UTCGHSA enrichment
- 2026-09-09 10:32 UTCGHSA enrichment
- 2026-09-08 23:22 UTCEG score recompute
- 2026-09-08 23:22 UTCGHSA enrichment
- 2026-09-08 22:00 UTCEPSS rescore
- 2026-09-08 04:37 UTCGHSA enrichment
- 2026-09-07 17:38 UTCGHSA enrichment
- 2026-09-07 06:39 UTCGHSA enrichment
- 2026-09-06 19:40 UTCEG score recompute
- 2026-09-06 19:40 UTCGHSA enrichment
- 2026-09-06 13:47 UTCEPSS rescore
- 2026-09-06 08:41 UTCGHSA enrichment
- 2026-09-05 21:43 UTCEG score recompute
- 2026-09-05 21:43 UTCGHSA enrichment
- 2026-09-05 10:44 UTCGHSA enrichment
- 2026-09-04 23:44 UTCEG score recompute
- 2026-09-04 23:44 UTCGHSA enrichment
- 2026-09-04 12:46 UTCEG score recompute
- 2026-09-04 12:46 UTCGHSA enrichment
- 2026-09-04 05:06 UTCEPSS rescore
- 2026-09-04 01:45 UTCGHSA enrichment
- 2026-09-03 14:44 UTCGHSA enrichment
- 2026-09-03 03:42 UTCEG score recompute
- 2026-09-03 03:42 UTCGHSA enrichment
- 2026-09-02 16:40 UTCEG score recompute
- 2026-09-02 16:39 UTCGHSA enrichment
- 2026-09-02 15:51 UTCEG score recompute▲ 7.30
- 2026-09-02 15:51 UTCGHSA enrichment
- 2026-09-02 15:46 UTCMITRE cvelistV5CVSS v3 → 7.3 · severity → HIGH
- 2026-09-02 14:11 UTCEPSS rescore
- 2026-09-01 21:07 UTCGHSA enrichment
- 2026-09-01 21:05 UTCNVD update
- 2026-09-01 19:29 UTCGHSA enrichment
- 2026-09-01 19:22 UTCMITRE cvelistV5
- 2026-09-01 18:22 UTCNVD update
- 2026-09-01 17:22 UTCEG score recompute
- 2026-09-01 17:22 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2026-19592?
When was CVE-2026-19592 disclosed?
Is CVE-2026-19592 actively exploited?
What is the CVSS score of CVE-2026-19592?
How do I remediate CVE-2026-19592?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-19592
Is Your Infrastructure Affected by CVE-2026-19592?
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