CVE-2021-31272

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-06-18 · updated 2026-06-17
Weakness: CWE-22

Description

SerenityOS before commit 3844e8569689dd476064a0759d704bc64fb3ca2c contains a directory traversal vulnerability in tar/unzip that may lead to command execution or privilege escalation.

Affected products

SerenityOS: before 3844e8569689dd476064a0759d704bc64fb3ca2c — fixed in 3844e8569689dd476064a0759d704bc64fb3ca2c

How to fix

Upgrade to a fixed version: SerenityOS 3844e8569689dd476064a0759d704bc64fb3ca2c. Check the vendor advisory for mitigations.

References

https://github.com/SerenityOS/serenity/issues/3991
https://github.com/SerenityOS/serenity/issues/3992
https://github.com/SerenityOS/serenity/pull/5713
https://github.com/SerenityOS/serenity/pull/5713/commits/3844e8569689dd476064a0759d704bc64fb3ca2c
https://github.com/SerenityOS/serenity/issues/3991
https://github.com/SerenityOS/serenity/issues/3992
https://github.com/SerenityOS/serenity/pull/5713
https://github.com/SerenityOS/serenity/pull/5713/commits/3844e8569689dd476064a0759d704bc64fb3ca2c

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