CVE-2026-106447
StableLib is a stable library of useful TypeScript and JavaScript code.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
StableLib is a stable library of useful TypeScript and JavaScript code. Prior to 2.0.4, the @stablelib/cbor decoder recursively processes nested CBOR arrays, maps, and tags through _decodeValue() without enforcing a maximum nesting depth. A sufficiently deep structure exhausts the JavaScript call stack, causing a decoding exception and potentially terminating an uncaught request worker or process. This issue is fixed in version 2.0.4.
- CVSS 4.0
- 8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.47% probability · 41th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-674
- Source
- security-advisories@github.com
EPSS moved from 0.4% on 7 October 2026 to 0.5% on 26 October 2026.
References
- https://github.com/StableLib/stablelib/commit/0149e18d9d4736e22c257744ca945ebce7899a01
- https://github.com/StableLib/stablelib/releases/tag/@stablelib/cbor@2.0.4
- https://github.com/StableLib/stablelib/security/advisories/GHSA-5jg4-p4qw-cgfr
- https://github.com/StableLib/stablelib/security/advisories/GHSA-5jg4-p4qw-cgfr
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.