CVE-2026-97058

medium

Description

sprintf-js through 1.1.3 passes unbounded precision specifiers to toFixed, toExponential, and toPrecision methods without validation, causing uncaught RangeError exceptions. Attackers who control format strings can inject precision values exceeding ECMAScript limits to abort calling operations with minimal payload.

References

https://www.vulncheck.com/advisories/sprintf-js-through-1.1.3-denial-of-service-via-unbounded-precision

https://github.com/alexei/sprintf.js/issues/237

https://github.com/alexei/sprintf.js/blob/3a0d8c26d291b5bd9f1974877ecc50739921d6f5/src/sprintf.js#L84-L90

https://github.com/alexei/sprintf.js/blob/3a0d8c26d291b5bd9f1974877ecc50739921d6f5/src/sprintf.js#L17

https://github.com/alexei/sprintf.js

Details

Source: Mitre, NVD

Published: 2026-09-24

Updated: 2026-09-24

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Severity: Medium

CVSS v4

Base Score: 6.9

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Severity: Medium