Vulnerability 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
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Timlegge | Crypt\ | < 2.003, \ |
Related Weaknesses (CWE)
References
- https://github.com/cpan-authors/crypt-nacl-sodium/pull/24.patchPatch
- https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#LProduct
- https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#LProduct
- https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#LProduct
- https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#LProduct
- https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.003/source/ChangesRelease Notes
- http://www.openwall.com/lists/oss-security/2026/03/08/1Mailing ListThird Party Advisory
FAQ
What is CVE-2026-30909?
CVE-2026-30909 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 SIZ...
How severe is CVE-2026-30909?
CVE-2026-30909 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-30909?
Check the references section above for vendor advisories and patch information. Affected products include: Timlegge Crypt\.