CVE-2026-30909

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 v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/cpan-authors/crypt-nacl-sodium/pull/24.patch	Patch
https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#L2116	Product
https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#L2310	Product
https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#L3304	Product
https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.002/source/Sodium.xs#L942	Product
https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.003/source/Changes	Release Notes
http://www.openwall.com/lists/oss-security/2026/03/08/1	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:timlegge:crypt\:\:nacl\:\:sodium:*:*:*:*:*:perl:*:*

History

No history.

Information

Published : 2026-03-08 01:15

Updated : 2026-03-18 13:02

NVD link : CVE-2026-30909

Mitre link : CVE-2026-30909

CVE.ORG link : CVE-2026-30909

JSON object : View

Products Affected

timlegge

crypt\

CWE

CWE-190

Integer Overflow or Wraparound

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