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Test your applicationsThere is no fixed version for Debian:12
gunicorn
.
Note: Versions mentioned in the description apply only to the upstream gunicorn
package and not the gunicorn
package as distributed by Debian
.
See How to fix?
for Debian:12
relevant fixed versions and status.
Gunicorn version 21.2.0 does not properly validate the value of the 'Transfer-Encoding' header as specified in the RFC standards, which leads to the default fallback method of 'Content-Length,' making it vulnerable to TE.CL request smuggling. This vulnerability can lead to cache poisoning, data exposure, session manipulation, SSRF, XSS, DoS, data integrity compromise, security bypass, information leakage, and business logic abuse.