PatchTheCVECVE-2026-30910: Crypt::Sodium::XS versions through 0.001000 for Perl has potential integer overflows. Combined aead encryptio
CVE-2026-30910 is a high-severity flaw (CVSS 7.5) affecting crypt\. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Crypt::Sodium::XS versions through 0.001000 for Perl has potential integer overflows. Combined aead encryption, combined signature creation, and bin2hex functions do not check that output size will be less than SIZE_MAX, which could lead to integer wraparound causing an undersized output buffer. This can cause a crash in bin2hex and encryption algorithms other than aes256gcm. For aes256gcm encryption and signatures, an undersized buffer could le
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 78%) |
| CISA exploited list | No |
| Weakness | CWE-190 |
| Published | 2026-03-08 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-30910?
crypt\: upgrade to newer than 0.001001. Exact commands for each OS are on this page.
Is CVE-2026-30910 being exploited?
CVE-2026-30910 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-30910 affect?
CVE-2026-30910 affects crypt\. Severity is high (CVSS 7.5). Crypt::Sodium::XS versions through 0.001000 for Perl has potential integer overflows. Combined aead encryption, combined signature creation, and bin2hex functions do not check that output size will be less than SIZE_MAX, which could lead t
How urgent is CVE-2026-30910?
Priority 37/100. High severity; Remotely exploitable, no login, no user action
Software pages
Related CVEs
- CVE-2026-5086 HIGH 7.5 UPGRADE Crypt::SecretBuffer versions before 0.019 for Perl is suseceptible to timing attacks. For example, if Crypt::
- CVE-2026-8463 MEDIUM 5.3 UPGRADE Crypt::Argon2 versions from 0.017 before 0.031 for Perl perform a heap out-of-bounds read in argon2_verify on
- CVE-2026-58102 CRITICAL 9.1 UPGRADE Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate ext
- CVE-2026-58101 HIGH 7.5 UPGRADE Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference. X50
- CVE-2025-15444 CRITICAL 9.8 UPGRADE Crypt::Sodium::XS module versions prior to 0.000042, for Perl, include a vulnerable version of libsodium libs