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Critical Vulnerability in tar-rs Affects Cargo Package Handling

Critical Vulnerability in tar-rs Affects Cargo Package Handling

First seen 1 Apr 2026, 16:01 UTC • •

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ThreatCluster AI
ThreatCluster •April 2, 2026 at 15:33 UTC
  • •A vulnerability in tar-rs allows privilege escalation via crafted tar archives.
  • •Users of the cargo package manager are particularly at risk.
  • •Immediate system updates are recommended to mitigate the vulnerability.

A vulnerability was discovered in tar-rs, embedded in cargo-c, which mishandles symlinks when unpacking tar archives. This flaw allows remote attackers to exploit specially crafted tar archives, potentially modifying permissions of directories outside the extraction root and escalating privileges. The issue affects users of the cargo package manager, particularly those who may process untrusted tar archives. A standard system update is recommended to mitigate the risk. The vulnerability has been assigned a CVE identifier, but specific details such as CVE number were not provided in the articles. The articles emphasize the importance of updating systems to the latest package versions to ensure security. Ubuntu Pro users benefit from extended security coverage for numerous packages. The issue is critical due to the potential for privilege escalation and unauthorized access.

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Updated 191d ago How this analysis works

Timeline

2026-04-01
Vulnerability in tar-rs reported affecting cargo-c.
2026-04-01
Ubuntu recommends system updates to address the vulnerability.

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