Astra Linux – vulnerability in nss, Thunderbird

NSS Network Security Services versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures. Applications utilizing NSS to process signatures encoded in CMS, S/MIME, PKCS \7, or PKCS \12 are likely to be affected. Applications that empl...

Rocky Linux 8 [CIQ] Security Update: nss / nss-debuginfo / nss-debugsource / nss-devel / nss-softokn / etc (crlsa-2021_4903)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20214903 advisory. nss: Memory corruption in decodeECorDsaSignature with DSA signatures and RSA-PSS CVE-2021-43527 Tenable has extracted the preceding description block directly from...

Astra Linux – Vulnerability in Thunderbird

Thunderbird versions prior to 91.3.0 are vulnerable to a heap overflow vulnerability described in CVE-2021-43527 when processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when processing S/MIME messages that contain certificates with DER-encoded DSA ...

CVE-2026-52059

RSA-PSS CertificateVerify checks only 0xbc trailer...

CVE-2026-33996

A flaw was found in LibJWT, a C JSON Web Token Library. When parsing JSON Web Key JWK files for RSA-PSS, the library did not correctly handle cases where NULL values were encountered instead of expected string values. An attacker could exploit this vulnerability by providing a specially crafted J...

Linux Distros Unpatched Vulnerability : CVE-2026-33996

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value whe...

DEBIAN-CVE-2026-33996

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the...

CVE-2026-33996

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the...

UBUNTU-CVE-2026-33996

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the...

CVE-2026-33996

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the...

CVE-2026-33996

LibJWT (C, the JSON Web Token library) versions prior to 3.3.0 are affected by a NULL value handling bug in JWK parsing for RSA-PSS. In 3.0.0–3.2.x, the parser could misinterpret integers where strings were expected, potentially enabling malformed JWKs to affect parsing. The issue was fixed in 3....

CVE-2026-33996

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the...

EUVD-2026-16899

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the...

CVE-2026-33996

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the...

CVE-2026-33996

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the...

CVE-2026-33996

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the...

CVE-2026-33996 LibJWT has NULL/bounds validation in JWK octet and RSA PSS parsing

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the...

CVE-2026-33996 LibJWT has NULL/bounds validation in JWK octet and RSA PSS parsing

LibJWT is a C JSON Web Token Library. Starting in version 3.0.0 and prior to version 3.3.0, the JWK parsing for RSA-PSS did not protect against a NULL value when expecting to parse JSON string values. A specially crafted JWK file could exploit this behavior by using integers in places where the...

libjwt code-related vulnerabilities

LibJWT is a C-language library developed by Ben Collins, designed for generating and verifying JSON Web Tokens. Versions of LibJWT from 3.0.0 to 3.3.0 contained code vulnerabilities. These vulnerabilities stemmed from RSA-PSS’s JWK parsing mechanism, which did not properly handle empty values,...

PT-2026-28589

Name of the Vulnerable Software and Affected Versions LibJWT versions 3.0.0 through 3.2.9 Description LibJWT, a C JSON Web Token Library, has an issue in the RSA-PSS JWK parsing functionality. Versions prior to 3.3.0 do not adequately validate JSON string values, specifically failing to protect...