CVE-2023-38522: Apache Traffic Server accepts characters that are not allowed for HTTP field names and forwards malformed requests to origin servers. This can be utilized for…

PriorityP344high7.5CVSS 3.1

AVNACLPRNUINSUCNIHAN

EPSS

0.99%

58.5th percentile

Apache Traffic Server accepts characters that are not allowed for HTTP field names and forwards malformed requests to origin servers. This can be utilized for request smuggling and may also lead cache poisoning if the origin servers are vulnerable. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.10, from 9.0.0 through 9.2.4. Users are recommended to upgrade to version 8.1.11 or 9.2.5, which fixes the issue.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
apache	traffic_server	>= 8.0.0 < 8.1.11	8.1.11
apache	traffic_server	>= 9.0.0 < 9.2.5	9.2.5
apache_software_foundation	apache_traffic_server	8.0.0 – 8.1.10	—
apache_software_foundation	apache_traffic_server	9.0.0 – 9.2.4	—
debian	trafficserver	< trafficserver 9.2.5+ds-0+deb12u1 (bookworm)	trafficserver 9.2.5+ds-0+deb12u1 (bookworm)

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

osv7.5HIGH

vendor_debian7.5HIGH

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