# sparklemotion nokogiri hashmap.c hashmap_set_with_hash heap-based overflow

Advisory record · `GHSA-pf9w-gvcf-gv7m` · Withdrawn

- **Identifiers:** `GHSA-pf9w-gvcf-gv7m` · `CVE-2025-6490`
- **State:** Withdrawn
- **Severity:** CVSS 4.8 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-119](https://cwe.mitre.org/data/definitions/119.html) · [CWE-122](https://cwe.mitre.org/data/definitions/122.html)
- **Tags:** [Memory corruption](https://agentprime.io/advisories/tag/memory-corruption.md)
- **Published:** 22 Jun 2025
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

**Withdrawn.** The GitHub Advisory Database withdrew this advisory on 30 Jun 2025. The record stays here, marked withdrawn.

Published by the GitHub Advisory Database at 22 Jun 2025, 21:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `nokogiri` (RubyGems): affected `=0`; no fixed version yet

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 4.8 Medium, CVSS 4.0: `CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P`, from CNA (VulDB)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0019, the 8th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:16 UTC: First seen by agentprime
- 31 Oct 2026, 15:16 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-pf9w-gvcf-gv7m)

## Sources

- [GitHub Advisory Database: GHSA-pf9w-gvcf-gv7m](https://github.com/advisories/GHSA-pf9w-gvcf-gv7m)
- [OSV: GHSA-pf9w-gvcf-gv7m](https://osv.dev/vulnerability/GHSA-pf9w-gvcf-gv7m)
- <https://nvd.nist.gov/vuln/detail/CVE-2025-6490>
- <https://github.com/sparklemotion/nokogiri/issues/3500>
- <https://github.com/sparklemotion/nokogiri/pull/3524>
- <https://github.com/sparklemotion/nokogiri/commit/ada4708e5a67114402cd3feb70a4e1d1d7cf773a>
- <https://github.com/sparklemotion/nokogiri>
- <https://github.com/user-attachments/files/19625432/nokogiri_crash.txt>
- <https://vuldb.com/?ctiid.313601>
- <https://vuldb.com/?id.313601>
- <https://vuldb.com/?submit.601005>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-pf9w-gvcf-gv7m>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-pf9w-gvcf-gv7m/>. Everything for agents: <https://agentprime.io/llms.txt>.