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web-token/jwt-library

4 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

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  • Medium —
    GHSA-5739-39v2-5754

    PHP JWT Library: RSA1_5 (RSAES-PKCS1-v1_5) decryption lacks implicit rejection, exposing a Bleichenbacher/Marvin padding oracle

    ### Impact `RSACrypt::decryptWithRSA15()` (used by the `RSA1_5` key-encryption algorithm) implements RSAES-PKCS1-v1_5 decryption by inspecting the padding after RSADP and throwing `InvalidArgumentException` as soon as the padding is malformed. It does **not**…

    web-token/jwt-library Packagist
  • High —
    GHSA-jc38-x7x8-2xc8

    PHP JWT Framework: JWSVerifier uses algorithm from unprotected header, enabling algorithm confusion attacks

    ## Summary `JWSVerifier::getAlgorithm()` in `src/Library/Signature/JWSVerifier.php` (line 144) merges protected and unprotected headers using PHP's spread operator: ```php $completeHeader = [...$signature->getProtectedHeader(), ...$signature->getHeader()]; ``…

    web-token/jwt-library web-token/jwt-experimental web-token/jwt-framework web-token/jwt-bundle Packagist
  • High —
    GHSA-3prj-6hqw-cm82

    PHP JWT Library: PBES2-HS*+A*KW unwrap accepts an unbounded p2c iteration count, enabling CPU-amplification denial of service

    ### Impact When a JWE uses a password-based key-encryption algorithm (`PBES2-HS256+A128KW`, `PBES2-HS384+A192KW`, `PBES2-HS512+A256KW`), `PBES2AESKW::unwrapKey()` reads the `p2c` (PBKDF2 iteration count) parameter directly from the attacker-controlled JOSE he…

    web-token/jwt-library web-token/jwt-framework Packagist
  • Medium —
    GHSA-6vvh-pxr4-25r7

    PHP JWT Framework: Chacha20Poly1305 key-encryption algorithm discards the Poly1305 authentication tag, performing no authentication on decryption

    ### Impact The experimental `Chacha20Poly1305` key-encryption algorithm generates the 16-byte Poly1305 authentication tag during `encryptKey()` but **discards it**: the tag is never written to the header and therefore never reaches the wire. On the receiving …

    web-token/jwt-library web-token/jwt-experimental Packagist