VEXnextcloud
nextcloud
1 statement, issued .Each one is a scanner finding that is not exploitable in this image, and why.
@id https://quench-works.com/vex/nextcloud/2026-09-30
CVE-2026-84308
not affected · vulnerable code not present- phpseclib 2.0.55
PROVEN false-positive, measured 2026-09-30 on the published nextcloud 34.0.4 image. CVE-2026-84308 (GHSA-q97c-8qh3-fpc6) is a timing leak in phpseclib's pure-PHP X25519 scalar multiplication: the advisory names phpseclib/Math/PrimeField/Integer.php, phpseclib/Crypt/EC/BaseCurves/Montgomery.php, and the Crypt/EC/Formats/Keys/MontgomeryPrivate.php and PKCS8.php key paths. Elliptic-curve support only exists from phpseclib 3.0. Nextcloud 34 requires phpseclib ^2.0.55 (nextcloud/3rdparty v34.0.4 composer.json), and the image ships phpseclib 2.0.55 under var/www/html/3rdparty/phpseclib/phpseclib/phpseclib. Verified on the exported image filesystem: its Crypt directory holds only AES, Base, Blowfish, DES, Hash, Random, RC2, RC4, Rijndael, RSA, TripleDES and Twofish, and `find` for Montgomery*.php, any Crypt/EC path or any PrimeField path returns 0 matches. The vulnerable code is not in the image. The advisory's fixed versions are 3.0.57 and 4.0.1 only: no 2.0.x release fixes it because 2.0.x never had the code. Nextcloud 35 moves to phpseclib ^3.0.55, where this statement stops applying and the real fix is required.