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

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...

PT-2026-27058

Name of the Vulnerable Software and Affected Versions jsrsasign versions prior to 11.1.1 Description The software contains a flaw related to incorrect conversion between numeric types when handling negative exponents in the ext/jsbn2.js file. This can allow an attacker to force the computation of...

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...