DailyCVE@dailycve
🔴 Seroval, Deserialization, #CVE-2026-116580 (high) -DC-Oct2026-3934 https://dailycve.com/seroval-deserialization-cve-2026-116580-high-dc-oct2026-3934/
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CVE-2026-116580
LOWCVSS 7.3 · HIGHSignal is active with 1 mentions in latest observed window
Immediate actions
- Track advisory updates for patch or workaround availability
Recommended action window: Monitor and triage in normal cycle
NVD description
Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.6.8, fromJSON rebuilds an AsyncIteratorFactoryInstance by calling source.on(listener) without requiring source to be a genuine internal stream. With untrusted Seroval input and an application plugin that returns a callable value or an object exposing an on method, a crafted node can reuse an identifier so the deserializer invokes the plugin-produced value. This is an incomplete-fix variant of CVE-2026-59940. The resulting confidentiality, integrity, or availability impact depends on the behavior exposed by the application plugin. This issue is fixed in version 1.6.8.
0.0/ 10 priority
Sources & remediation
Other references
- https://github.com/lxsmnsyc/seroval/commit/3edc78b495ea0d6bd498143e5b3e56996607c5f2
- https://github.com/lxsmnsyc/seroval/commit/50926b3ee198fb757e6ce3aa70efeed38d931c8d
- https://github.com/lxsmnsyc/seroval/releases/tag/[email protected]
- https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-7rv5-mrxv-xcr9
Weakness type (CWE)
CWE-502
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
Threat summary
- 1 mentions across 1 observed day
What's happening
- 1 total mentions across 1 day