seroval: `seroval.fromJSON()` Promise resolver type confusion invokes attacker-controlled methods during deserialization
High-risk advisory
CVE-2026-59940
Summary
seroval: `seroval.fromJSON()` Promise resolver type confusion invokes attacker-controlled methods during deserialization
Why it matters
GitHub has published a reviewed security advisory for seroval. Prioritize it with other application dependency updates.
Operator check
Check whether seroval is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.