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Critical 9.8Published Mar 7, 2026

CVE-2026-30909Crypt::NaCl::Sodium versions through 2.002 for Perl has potential integer overflows

Updated under an hour ago ()

Does this affect you?

It affects TIMLEGGE Crypt::NaCl::Sodium and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-190
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
CPANSec
NVD analysis
Analyzed
Record last updated
Mar 10, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
TIMLEGGE Crypt::NaCl::Sodium
timlegge:crypt_nacl_sodium (from the name)
through 2.002
CNA record
timlegge crypt::nacl::sodium
timlegge:crypt::nacl::sodium
before 2.003
NVD

References

  • product
  • product
  • product
  • product
  • patch
  • release-notes
  • mailing-list, third-party-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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