CVE Explorer

CVE-2026-23956

seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 0.2.0 through 1.4.0, overriding RegExp serialization with extremely large patterns can exhaust JavaScript runtime memory during deserialization. Additionally, overriding RegExp serialization with patterns that trigger catastrophic backtracking can lead to ReDoS (Regular Expression Denial of Service). This issue has been fixed in version 1.4.1.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:248e80de91dcd8f2ee1297392ee567d1b2ed9fc6e5ff0613b21d325e58bcd6c9

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"seroval","vendor":"lxsmnsyc","versions":[{"status":"affected","version":">= 0.2.0, < 1.4.1"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:19af6d072d02270cfc5b8c7ff83050bc1aa535e91528395cbd74a8f3fb047e0a · sha256:81b6ae932c819c99… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:19af6d072d02270cfc5b8c7ff83050bc1aa535e91528395cbd74a8f3fb047e0a · sha256:81b6ae932c819c99… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-1333","description":"CWE-1333: Inefficient Regular Expression Complexity","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:19af6d072d02270cfc5b8c7ff83050bc1aa535e91528395cbd74a8f3fb047e0a · sha256:81b6ae932c819c99… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/lxsmnsyc/seroval/blob/v0.2.0/packages/seroval/src/index.ts#L90","tags":["x_refsource_MISC"],"url":"https://github.com/lxsmnsyc/seroval/blob/v0.2.0/packages/seroval/src/index.ts#L90"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:19af6d072d02270cfc5b8c7ff83050bc1aa535e91528395cbd74a8f3fb047e0a · sha256:81b6ae932c819c99… · /containers/cna/references/2

{"name":"https://github.com/lxsmnsyc/seroval/commit/ce9408ebc87312fcad345a73c172212f2a798060","tags":["x_refsource_MISC"],"url":"https://github.com/lxsmnsyc/seroval/commit/ce9408ebc87312fcad345a73c172212f2a798060"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:19af6d072d02270cfc5b8c7ff83050bc1aa535e91528395cbd74a8f3fb047e0a · sha256:81b6ae932c819c99… · /containers/cna/references/1

{"name":"https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-hx9m-jf43-8ffr","tags":["x_refsource_CONFIRM"],"url":"https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-hx9m-jf43-8ffr"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:19af6d072d02270cfc5b8c7ff83050bc1aa535e91528395cbd74a8f3fb047e0a · sha256:81b6ae932c819c99… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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