GHSA-8QWJ-4JXW-M8JW jsrsasign: Negative Exponent Handling Leads to Signature Verification Bypass

Versions of the package jsrsasign before 11.1.1 are vulnerable to Incorrect Conversion between Numeric Types due to handling negative exponents in ext/jsbn2.js. An attacker can force the computation of incorrect modular inverses and break signature verification by calling modPow with a negative...

CVE-2026-4602

Versions of the package jsrsasign before 11.1.1 are vulnerable to Incorrect Conversion between Numeric Types due to handling negative exponents in ext/jsbn2.js. An attacker can force the computation of incorrect modular inverses and break signature verification by calling modPow with a negative...

CVE-2026-4602

Versions of the package jsrsasign before 11.1.1 are vulnerable to Incorrect Conversion between Numeric Types due to handling negative exponents in ext/jsbn2.js. An attacker can force the computation of incorrect modular inverses and break signature verification by calling modPow with a negative...

CVE-2026-4602

CVE-2026-4602 affects the npm package jsrsasign prior to 11.1.1. The root cause is incorrect conversion between numeric types due to handling negative exponents in ext/jsbn2.js, which can cause modPow with a negative exponent and lead to incorrect modular inverses and broken signature verificatio...

CVE-2026-4602

Versions of the package jsrsasign before 11.1.1 are vulnerable to Incorrect Conversion between Numeric Types due to handling negative exponents in ext/jsbn2.js. An attacker can force the computation of incorrect modular inverses and break signature verification by calling modPow with a negative...

CVE-2026-4602

Versions of the package jsrsasign before 11.1.1 are vulnerable to Incorrect Conversion between Numeric Types due to handling negative exponents in ext/jsbn2.js. An attacker can force the computation of incorrect modular inverses and break signature verification by calling modPow with a negative...

PT-2026-27058

Name of the Vulnerable Software and Affected Versions jsrsasign versions prior to 11.1.1 Description Incorrect Conversion between Numeric Types occurs due to the handling of negative exponents in the file ext/jsbn2.js. An attacker can force the computation of incorrect modular inverses and break...

Incorrect Conversion between Numeric Types

Overview org.webjars.npm:jsrsasign is a free pure JavaScript cryptographic library. Affected versions of this package are vulnerable to Incorrect Conversion between Numeric Types due to handling negative exponents in ext/jsbn2.js. An attacker can force the computation of incorrect modular inverse...

Incorrect Conversion between Numeric Types

Overview jsrsasign is a free pure JavaScript cryptographic library. Affected versions of this package are vulnerable to Incorrect Conversion between Numeric Types due to handling negative exponents in ext/jsbn2.js. An attacker can force the computation of incorrect modular inverses and break...