CVE catalog
CVE-2025-6490
ruby-nokogiri: CVE-2025-6490
- Severity
- Low
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.18% · Oct 25, 2026
A vulnerability was found in sparklemotion nokogiri c29c920907366cb74af13b4dc2230e9c9e23b833 and classified as problematic. This issue affects the function hashmap_set_with_hash of the file gumbo-parser/src/hashmap.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The identifier of the patch is ada4708e5a67114402cd3feb70a4e1d1d7cf773a. It is recommended to apply a patch to fix this issue. The project maintainer explains that the affected code was merged into the main branch but the commit never appeared in an official release.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | ruby-nokogiri | sid | 1.19.4+dfsg-1 | not affected |
| Debian | ruby-nokogiri | forky | 1.19.4+dfsg-1 | not affected |
| Debian | ruby-nokogiri | trixie | 1.18.2+dfsg-1 | not affected |
| Debian | ruby-nokogiri | bookworm | 1.13.10+dfsg-2 | not affected |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ruby-nokogiri | source | sid | Not affected | unimportant | Not reported | Not reported |
| Debian | ruby-nokogiri | source | forky | Not affected | unimportant | Not reported | Not reported |
| Debian | ruby-nokogiri | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | ruby-nokogiri | source | bookworm | Not affected | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [ruby-nokogiri]Not affected
Source package: [ruby-nokogiri]
Details (2)
1.13.10+dfsg-2+b1· amd64 · bookwormNot affected
dsa · ruby-nokogiri · debian · bookworm
1.13.10+dfsg-2+b1· arm64 · bookwormNot affected
dsa · ruby-nokogiri · debian · bookworm
Observed:
References
- [https://ftp.suse.com/pub/projects/security/]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-6490]
- [https://security-tracker.debian.org/tracker/CVE-2025-6490]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1687.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]