In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.
Priority HIGH 67CWE-24Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00205 10th percentileScored 2026-11-07
Fix Partial opam (OCaml): 2.5.1Red Hat: 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| OCaml | opam | before 2.5.1 | 2.5.1 | Patch available | CNA |
- opam VendorOCaml Affected before 2.5.1 Fixed in 2.5.1 Patch available CNA
Remediation
- Fix · CNA opam (OCaml) Fixed in 2.5.1
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-41082
- 2026-10-03 Alias added: GHSA-97q5-qf47-hvrw
References
Advisory 4
Sources
- CVE-2026-41082 · CVE Program
- CVE-2026-41082 · NVD
- FIRST EPSS
- GHSA-97q5-qf47-hvrw · GitHub Advisory Database · CC BY 4.0
- CVE-2026-41082 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences