VULNERABILITY INTELLIGENCE
CVE-2026-53670
EPSS probability0.51%
CISA KEVNot currently listed
Published2026-09-02
Last modified2026-09-09
Description
PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, in the Prevail eBPF verifier, EbpfTransformer::add() silently skips offset-variable updates when the destination register carries a non-singleton typeset (two or more simultaneously possible pointer types). Subsequent bounds checks use the stale offset and accept out-of-bounds memory accesses, so a crafted BPF program passes verification even though it would corrupt memory at runtime. This issue has been patched in version 0.2.4.
Weakness classification
- security-advisories@github.com: CWE-682