CVE-2021-3990

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in star7th/showdoc

View on CVE.org

Published Dec 1, 2021 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Description

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

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

star7th

star7th/showdoc

affected

Version	Status	Constraints
`unspecified`	affected	< 2.9.13

Configuration 1 [-]

cpe:2.3:a:showdoc:showdoc:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-2596	showdoc is vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Github GHSA	GHSA-vrgh-5w3c-ggf8	showdoc is vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction Required

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.891% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/star7th/showdoc/commit/a9886f26c08225e0adca75c67dfca3f7c42b87d0
https://huntr.dev/bounties/0680067d-56a7-4412-b06e-a267e850ae9f

History

No history.

Subscriptions

Showdoc Showdoc

Weaknesses

CWE-338

Sources

CVE record Updated: Aug 3, 2024, 5:16 PM

Status: PUBLISHED
Assigner: @huntrdev
Published: Dec 1, 2021, 10:50 AM
Updated: Aug 3, 2024, 5:16 PM
Reserved: Nov 20, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:06 AM

Status: Modified
Published: Dec 1, 2021, 11:15 AM
Modified: Jun 17, 2026, 4:06 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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