showdoc is vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

MEDIUM 6.5CVE-2021-3990 · GHSA-vrgh-5w3c-ggf8 · Published 01/12/2021 · updated 17/06/2026

In short

CVE-2021-3990 is a MEDIUM (CVSS 6.5) vulnerability affecting showdoc/showdoc, showdoc (showdoc).
Chance of exploitation in the next 30 days (EPSS): 0.89%, higher than 59.4% of all vulnerabilities.
Fix: update to 2.9.13 or later.

Package	Affected versions	Patched versions
showdoc/showdoc Packagist	`< 2.9.13`	`2.9.13`
showdoc showdoc	`< 2.9.13`	`2.9.13`

showdoc is vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG).

NVD description

showdoc is vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

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Package

Affected versions

Patched versions

Packagist

< 2.9.13

2.9.13

< 2.9.13

2.9.13

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