5.9

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2026-92842

CVE-2026-92842: OOB read / info leak in convert.* stream filters when line-break-chars contains NUL

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.

Miggo Vulnerability Database

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CVE-2026-92842

CVE-2026-92842:

5.9

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

SSVC / BOD 26-04 ↗

Exploitation NoneAutomatable NoTech Impact Partial

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Technical Details

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Root Cause Analysis:

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WAF Protection Rules

WAF Rule

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Reasoning

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