What’s Vulnerable › Vulnerabilities

CVE-2020-1944

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-03-23 · updated 2026-06-17
• Weakness: CWE-444

Description

There is a vulnerability in Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.8, and 8.0.0 to 8.0.5 with a smuggling attack and Transfer-Encoding and Content length headers. Upgrade to versions 7.1.9 and 8.0.6 or later versions.

Affected products

• Apache Software Foundation Apache Traffic Server: from 6.0.0 through 6.2.3; from 7.0.0 through 7.1.8; from 8.0.0 through 8.0.5
• Debian Linux: 10.0

References

• https://lists.apache.org/thread.html/r99d18d0bc4daa05e7d0e5a63e0e22701a421b2ef5a8f4f7694c43869%40%3Cannounce.trafficserver.apache.org%3E
• https://www.debian.org/security/2020/dsa-4672
• https://lists.apache.org/thread.html/r99d18d0bc4daa05e7d0e5a63e0e22701a421b2ef5a8f4f7694c43869%40%3Cannounce.trafficserver.apache.org%3E
• https://www.debian.org/security/2020/dsa-4672

Get alerted when CVE-2020-1944 or the next vulnerability affects your stack