cve.bz

CVE-2026-121240

no score yetEPSS 0.2%

No CVSS score yet. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.

Improper input validation in Variations in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass system access restrictions via crafted network traffic. (Chromium security severity: Low)
EPSS
0.2% estimated probability of exploitation activity in the next 30 days; 6th percentile. Scored 2026-11-04. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-20 Improper Input Validation
OWASP Top 10
A05:2025 Injection
Published
Modified
Record from
the NVD, synced

Ask an AI about this CVE

Show the promptExplain CVE-2026-121240 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-121240?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-121240?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-121240 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.

Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.

Versions

From the CNA's record in the CVE List.

ProductAffected
Google Chromefrom 157.0.8103.38 before 157.0.8103.38

Linux distributions

DistributionReleasePackageFixed inAdvisory
Debian12, 13, 14chromiumno fix listedDEBIAN-CVE-2026-121240

From the distributions' data via OSV.dev: the Debian Security Tracker. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Debian.

Attack patterns (CAPEC)

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits. More on the page of CWE-20 (51).

References

Check your stackJSON