DEBIAN-CVE-2025-9086
- Source
- https://security-tracker.debian.org/tracker/CVE-2025-9086
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-9086.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-9086
- Upstream
- Downstream
- Published
- 2025-09-12T06:15:44.100Z
- Modified
- 2026-01-15T01:07:37.651845Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
- A cookie is set using the
securekeyword forhttps://target2. curl is redirected to or otherwise made to speak withhttp://target(same hostname, but using clear text HTTP) using the same cookie set 3. The same cookie name is set - but with just a slash as path (path=\"/\",). Since this site is not secure, the cookie should just be ignored. 4. A bug in the path comparison logic makes curl read outside a heap buffer boundary The bug either causes a crash or it potentially makes the comparison come to the wrong conclusion and lets the clear-text site override the contents of the secure cookie, contrary to expectations and depending on the memory contents immediately following the single-byte allocation that holds the path. The presumed and correct behavior would be to plainly ignore the second set of the cookie since it was already set as secure on a secure host so overriding it on an insecure host should not be okay.
- A cookie is set using the
- References
Affected packages
Debian:13 / curl
Package
- Name
- curl
- Purl
- pkg:deb/debian/curl?arch=source
Debian:14 / curl
Package
- Name
- curl
- Purl
- pkg:deb/debian/curl?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed8.16.0~rc2-1