CVE-2025-58186
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
Despite HTTP headers having a default limit of 1MB, the number of cookies that can be parsed does not have a limit. By sending a lot of very small cookies such as "a=;", an attacker can make an HTTP server allocate a large amount of structs, causing large memory consumption.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2025-58186.html
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2025-58186
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bullseye | affected | |
| debian | trixie | affected | |
| debian | bookworm | affected | |
| debian | forky | fixed | 1.25.2-1 |
| debian | sid | fixed | 1.25.2-1 |
| sles | affected | |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | stdlib | >=1.25.0,<1.25.2 | 1.24.8 |
References
Verify integrity in audit chain (admin only). AS-IS.