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

Quick assessment

Affected
TIMLEGGE Crypt::NaCl::Sodium
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Crypt::NaCl::Sodium是CPAN Authors开源的一个加密/解密库。 Crypt::NaCl::Sodium 2.002及之前版本存在安全漏洞，该漏洞源于整数溢出，可能导致输出缓冲区大小不足。

AI Predicted 5.5 Difficulty: Theoretical EPSS 0.53% · P43

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-30909

Vulnerability Information
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Vulnerability Title
Crypt::NaCl::Sodium versions through 2.002 for Perl has potential integer overflows
Source: CVE Program / CVE List V5
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
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
Crypt::NaCl::Sodium 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Crypt::NaCl::Sodium是CPAN Authors开源的一个加密/解密库。 Crypt::NaCl::Sodium 2.002及之前版本存在安全漏洞，该漏洞源于整数溢出，可能导致输出缓冲区大小不足。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TIMLEGGE Crypt::NaCl::Sodium 0 ~ 2.002 -

II. Public POCs for CVE-2026-30909

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III. Intelligence Information for CVE-2026-30909

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Patches & Fixes for CVE-2026-30909 (4)

Vendor Pages for CVE-2026-30909 (1)

IV. Related Vulnerabilities

Same product: Crypt::NaCl::Sodium
Same vendor: TIMLEGGE
Same weakness: CWE-190

V. Comments for CVE-2026-30909

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