High severity7.5NVD Advisory· Published Mar 28, 2025· Updated Jun 17, 2026
CVE-2024-13939
CVE-2024-13939
Description
String::Compare::ConstantTime for Perl through 0.321 is vulnerable to timing attacks that allow an attacker to guess the length of a secret string.
As stated in the documentation: "If the lengths of the strings are different, because equals returns false right away the size of the secret string may be leaked (but not its contents)."
This is similar to CVE-2020-36829
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Affected products
3- Range: <=0.321
- FRACTAL/String::Compare::ConstantTimev5Range: 0
Patches
Vulnerability mechanics
References
1News mentions
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