What’s Vulnerable › Vulnerabilities

CVE-2026-2588: Crypt::NaCl::Sodium versions through 2.001 for Perl has an integer overflow flaw on 32-bit systems

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-23 · updated 2026-06-17
• Weakness: CWE-190

Description

Crypt::NaCl::Sodium versions through 2.001 for Perl has an integer overflow flaw on 32-bit systems. Sodium.xs casts a STRLEN (size_t) to unsigned long long when passing a length pointer to libsodium functions. On 32-bit systems size_t is typically 32-bits while an unsigned long long is at least 64-bits.

Affected products

• TIMLEGGE Crypt::Nacl::Sodium: through 2.001

References

• https://github.com/cpan-authors/crypt-nacl-sodium/commit/557388bdb4da416a56663cda0154b80cd524395c.patch
• https://github.com/cpan-authors/crypt-nacl-sodium/commit/8cf7f66ba922443e131c9deae1ee00fafe4f62e4.patch
• https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.001/source/Sodium.xs#L2119

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