CVE-2026-92842
The convert.base64-encode, convert.quoted-printable-encode and convert.quoted-printable-decode stream filters accept a line-break-chars opti
CVSS
5.9
Medio
EPSS
0.2%
p13
KEV
—
Exploit Today
4
0-100
Publicado: 25 sept 2026 · Última mod.: 29 sept 2026 · CWE-122 · CWE-125
The convert.base64-encode, convert.quoted-printable-encode and convert.quoted-printable-decode stream filters accept a line-break-chars option whose length is tracked separately from the string itself. The filter constructors duplicate the value with pestrdup(), which stops at the first NUL byte, while keeping the original length. When the filter later emits a line break it copies the recorded length out of the truncated allocation, reading past its end and placing adjacent heap bytes into the filter output.