Vulnerability · Published Aug 29, 2026 · Assigned by mitre
CVE-2026-82481
High 8.7
In plain English
A high-severity security flaw in cohttp from mirage. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.7%top 46.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The cohttp package before 6.3.0 for OCaml allows directory traversal.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | ocaml-cohttp | no fix listed | DEBIAN-CVE-2026-82481 |
| Debian:13 | ocaml-cohttp | no fix listed | DEBIAN-CVE-2026-82481 |
| Debian:14 | ocaml-cohttp | no fix listed | DEBIAN-CVE-2026-82481 |
| Ubuntu:22.04:LTS | ocaml-cohttp | no fix listed | UBUNTU-CVE-2026-82481 |
| Ubuntu:24.04:LTS | ocaml-cohttp | no fix listed | UBUNTU-CVE-2026-82481 |
| Ubuntu:26.04:LTS | ocaml-cohttp | no fix listed | UBUNTU-CVE-2026-82481 |
| Ubuntu:26.10 | ocaml-cohttp | no fix listed | UBUNTU-CVE-2026-82481 |
Affected products (as reported)
Weakness: CWE-180 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/AU:Y/R:A/V:D/RE:M