What’s Vulnerable › Vulnerabilities

CVE-2026-88378

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-24 · updated 2026-09-29
• Weakness: CWE-787

Description

QuickJS commit 04be24600 contains a heap out-of-bounds write condition in JS_ReadFunctionTag().

References

• https://github.com/bellard/quickjs/issues/549
• https://github.com/bellard/quickjs/pull/553
• https://github.com/bellard/quickjs/pull/553/changes/42526037cfc0b2a94a875c0de0f4bbeaf597a542
• https://github.com/bellard/quickjs/issues/549

Get alerted when CVE-2026-88378 or the next vulnerability affects your stack