CVE-2026-30909CWE-190

Crypt::NaCl::Sodium versions through 2.002 for Perl has potential integer overflows

Critical · published March 8, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
55.3
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00775 · 55.3th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2026-03-08T00:46Z
EPSS history
Timeline
  • 08 MAR 00:46Z
    Crypt::NaCl::Sodium versions through 2.002 for Perl has potential integer overflows
    cvelistv5