CVE-2026-30909

9.8 CRITICAL
Published: March 08, 2026 Modified: March 18, 2026
View on NVD

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

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/cpan-authors/crypt-nacl-sodium/pull/24.patch
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Patch
https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.003/source/Changes
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Release Notes
http://www.openwall.com/lists/oss-security/2026/03/08/1
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory

7 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
0.1%
22th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

timlegge