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CVE-2026-30909

CRITICAL

9.8

Description

Crypt::NaCl::Sodium versions through 2.002 for Perl has potential integer overflows. bin2hex, encrypt, aes256gcm_encrypt_afternm and seal functions do not check that output size will be less than SIZE_MAX, which could lead to integer wraparound causing an undersized output buffer. Encountering this issue is unlikely as the message length would need to be very large. For bin2hex() the bin_len would have to be > SIZE_MAX / 2 For encrypt() the msg_len would need to be > SIZE_MAX - 16U For aes256gcm_encrypt_afternm() the msg_len would need to be > SIZE_MAX - 16U For seal() the enc_len would need to be > SIZE_MAX - 64U

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/8/2026

Last Modified3/18/2026

Sourcenvd

Honeypot Sightings0

Affected Products

timlegge:crypt\

Weaknesses (CWE)

CWE-190

References

https://github.com/cpan-authors/crypt-nacl-sodium/pull/24.patch(9b29abf9-4ab0-4765-b253-1875cd9b441e)

https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#L2116(9b29abf9-4ab0-4765-b253-1875cd9b441e)

https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#L2310(9b29abf9-4ab0-4765-b253-1875cd9b441e)

https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#L3304(9b29abf9-4ab0-4765-b253-1875cd9b441e)

https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#L942(9b29abf9-4ab0-4765-b253-1875cd9b441e)

https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.003/source/Changes(9b29abf9-4ab0-4765-b253-1875cd9b441e)

http://www.openwall.com/lists/oss-security/2026/03/08/1(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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