CVE-2026-30909CRITICAL 9.8EPSS p40.7%
CVE-2026-30909CVE-2026-30909
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
Scoring
| CVSS 3.1 | 9.8 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.53% probability of exploitation · percentile 40.7% · 2026-06-19T12:03:05Z |
| Published | 2026-03-08 |
| Last modified | 2026-03-18 |
Underlying weaknesses· 1
References
- https://github.com/cpan-authors/crypt-nacl-sodium/pull/24.patch
- https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#L2116
- https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#L2310
- https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#L3304
- https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#L942
- https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.003/source/Changes
- http://www.openwall.com/lists/oss-security/2026/03/08/1
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Integer Overflow or Wraparoundcwe-190 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.