HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers are inadvertently lost in some situations, aka "request smuggling." The HTTP header parsers in HAProxy may accept empty header field names, which could be used to truncate the list of HTTP headers and thus make some headers disappear after being parsed and processed for HTTP/1.0 and HTTP/1.1. For HTTP/2 and HTTP/3, the impact is limited because the headers disappear before being parsed and processed, as if they had not been sent by the client. The fixed versions are 2.7.3, 2.6.9, 2.5.12, 2.4.22, 2.2.29, and 2.0.31.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2023-02-14T00:00:00

Updated: 2023-02-25T00:00:00

Reserved: 2023-02-13T00:00:00


Link: CVE-2023-25725

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2023-02-14T19:15:11.530

Modified: 2023-11-07T04:09:09.257


Link: CVE-2023-25725

JSON object: View

cve-icon Redhat Information

No data.