Leont's vulnerability footprint centers on the Crypt cryptographic library, a narrowly scoped component that appears in security-sensitive contexts across multiple downstream products. The durable signal reflects memory-handling and validation issues endemic to native cryptographic code, with recurrent weakness classes including buffer over-reads, heap-based buffer overflows, improper input validation, and integer underflow conditions that can arise in parsing and mathematical operations. Current severity, exploitation activity, and exposure metrics are shown alongside this summary.
The number and severity of CVEs published that impact products developed by Leont over time
Signals from CVEs in this vendor scope (2 CVEs).
2 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2026-2597HIGH Crypt::SysRandom::XS versions before 0.010 for Perl is vulnerable to a heap buffer overflow in the XS function random_bytes().
The function does not validate that the length param | Feb 27, 2026 | 7.5 | 27 | NO | NO |
CVE-2026-8463MEDIUM Crypt::Argon2 versions from 0.017 before 0.031 for Perl perform a heap out-of-bounds read in argon2_verify on empty encoded input.
The auto-detect form of argon2_verify passes enc | May 13, 2026 | 5.3 | 25 | NO | NO |
Signals from CVEs in this vendor scope (2 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Leont.
Media articles that mention a CVE ID that affects a product developed by Leont — matched by CVE ID, not by vendor name.