CVE-2023-5476 — Use after free in Blink History in Google Chrome prior to 118

Use after free in Blink History in Google Chrome prior to 118.0.5993.70 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)

01What is this vulnerability?

Use after free in Blink History in Google Chrome prior to 118.0.5993.70 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)

02Affected products

Vendor	Product	Versions
Google	Chrome	118.0.5993.70

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-10-11T22:28:52.850Z
• Last modified: 2025-05-01T18:10:00.628Z

09References

• chromereleases.googleblog.com — https://chromereleases.googleblog.com/2023/10/stable-channel-update-for-desktop_…
• crbug.com — https://crbug.com/1474253
• www.debian.org — https://www.debian.org/security/2023/dsa-5526
• security.gentoo.org — https://security.gentoo.org/glsa/202311-11
• security.gentoo.org — https://security.gentoo.org/glsa/202312-07
• security.gentoo.org — https://security.gentoo.org/glsa/202401-34