CVE-2025-6490

Public Exploit
sparklemotion nokogiri hashmap.c hashmap_set_with_hash heap-based overflow

Description

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.

Category

4.8
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.01%
Third-Party Advisory vuldb.com
Affected: sparklemotion nokogiri
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2025-6490?
CVE-2025-6490 has been scored as a medium severity vulnerability.
How to fix CVE-2025-6490?
To fix CVE-2025-6490, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-6490 being actively exploited in the wild?
It is possible that CVE-2025-6490 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-6490?
CVE-2025-6490 affects sparklemotion nokogiri.
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