When reading a specially crafted 7Z archive, the construction of the list of codecs that decompress an entry can result in an infinite loop. This could be used to mount a denial of service attack against services that use Compress' sevenz package.

Affected Packages

Maven org.apache.commons:commons-compress

Affected versions: 0 (fixed in 1.21)

Related CVEs

CVE-2021-35515

Key Information

GHSA ID

GHSA-7hfm-57qf-j43q

Published

August 2, 2021 4:55 PM

Last Modified

February 8, 2022 9:08 PM

CVSS Score

7.5 /10

Primary Ecosystem

Maven

Primary Package

org.apache.commons:commons-compress

GitHub Reviewed

✓ Yes

Dataset

Last updated: July 27, 2025 6:35 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.