Bug 2499926 (CVE-2026-6790)
| Summary: | CVE-2026-6790 jetty: Jetty: Improper Host header validation can lead to request routing issues | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | abrianik, anthomas, anujha, aschwart, asoldano, asyoung, aszczucz, ataylor, bbaranow, bmaxwell, boliveir, bstansbe, ccranfor, chfoley, dbruscin, dfreiber, dlofthou, drichtar, drow, ehelms, ehugonne, ewittman, fmariani, ggainey, ggrzybek, gmalinko, istudens, ivassile, iweiss, janstey, jburrell, jhollowa, jpasqual, jpechane, jraez, juwatts, jwon, kaycoth, kgaikwad, kvanderr, mcarlett, mdellweg, mhulan, mosmerov, mposolda, msvehla, nipatil, nmoumoul, nwallace, osousa, pantinor, parichar, pberan, pcreech, pesilva, pjindal, pmackay, prichard, rchan, rgodfrey, rhel-process-autobot, rkubis, rmartinc, rstancel, rstepani, sdawley, smallamp, ssilvert, sthirugn, sthorger, swoodman, tasato, tcunning, thjenkin, tmalecek, vdosoudi, vkumar, vmuzikar, watson-tool-maintainers, yfang |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in Eclipse Jetty. The server does not strictly validate that the request authority (host and port) matches the Host header provided in HTTP/1, HTTP/2, and HTTP/3 requests. This improper validation can lead to various issues, including incorrect handling of URI constructions for redirects, flawed virtual host selection, and problems with reverse proxying. Such discrepancies could potentially be exploited to bypass security mechanisms or misroute network traffic.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2511547, 2511548, 2511549 | ||
| Bug Blocks: | |||
In Eclipse Jetty, for HTTP/1, HTTP/2 and HTTP/3 requests, there is no strict check that the request authority (host and port) matches what provided in the Host header (if present). This was not enforced in earlier HTTP RFC (for example, in RFC 2616), but it is in the latest RFC (9110 and 9112). This mismatch can cause a number of problems that may be classified as vulnerabilities such as: * URI constructions (for example, for redirects -- this is typical for login pages) * Virtual host selection * Reverse proxying * Misleading logs * Etc. Given that the latest RFCs require that request authority and Host header must match, Jetty should enforce this invariant.