Integer overflow in TIMLEGGE Crypt::NaCl::Sodium
Priority MEDIUM 45CWE-190Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
Crypt::NaCl::Sodium versions through 2.001 for Perl has an integer overflow flaw on 32-bit systems. Sodium.xs casts a STRLEN (size_t) to unsigned long long when passing a length pointer to libsodium functions. On 32-bit systems size_t is typically 32-bits while an unsigned long long is at least 64-bits.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00394 33rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-2588
- 2026-10-03 Alias added: GHSA-8gq5-mm3m-7h4x
- 2026-10-11 EPSS moved to the 50th–90th percentile
- 2026-10-25 EPSS moved to the below the 50th percentile
References
Patch 2
More TIMLEGGE Crypt vulnerabilities
- TI-2026-23735 Integer overflow in TIMLEGGE Crypt::NaCl::Sodium CVSS 3.1CRITICAL 9.8
- TI-2025-01575 Perl's Crypt::Random module after 1.05 and before 1.56 may use rand() function for cryptographic functions CVSS 3.1HIGH 8.8
Sources
- CVE-2026-2588 · CVE Program
- CVE-2026-2588 · NVD
- FIRST EPSS
- GHSA-8gq5-mm3m-7h4x · GitHub Advisory Database · CC BY 4.0
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