# Alex Crichton vulnerabilities

Source: https://junglewise.ai/threats/vendors/alex-crichton  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/alex-crichton.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 2 vulnerabilities in Alex Crichton: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, composefs tar-rs PAX header desynchronization, was published on 29 May 2026. 1 technology has a page of its own.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 2 (0 critical, 0 exploited in the wild)

## About Alex Crichton

A software developer and maintainer of various open-source Rust libraries.

## Latest Alex Crichton vulnerabilities

- [composefs tar-rs PAX header desynchronization](https://junglewise.ai/threats/composefs-tar-rs-pax-header-desynchronization-aa3a4389) (medium, CVSS 0, published 29 May 2026)
- [CVE-2026-33055: Rust tar-rs archive parsing discrepancy via PAX size header ignore](https://junglewise.ai/threats/cve-2026-33055-rust-tar-rs-archive-parsing-discrepancy-via-pax-size-header) (high, CVSS 8.1, published 20 Mar 2026)

## Most severe Alex Crichton vulnerabilities

- [CVE-2026-33055: Rust tar-rs archive parsing discrepancy via PAX size header ignore](https://junglewise.ai/threats/cve-2026-33055-rust-tar-rs-archive-parsing-discrepancy-via-pax-size-header) (high, CVSS 8.1, published 20 Mar 2026)
- [composefs tar-rs PAX header desynchronization](https://junglewise.ai/threats/composefs-tar-rs-pax-header-desynchronization-aa3a4389) (medium, CVSS 0, published 29 May 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Alex Crichton technologies

- [Alex Crichton Tar-Rs](https://junglewise.ai/threats/technologies/tar-rs): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Alex Crichton vulnerabilities", https://junglewise.ai/threats/vendors/alex-crichton, 9 November 2026.