Bug 2454096 (CVE-2026-34525)
| Summary: | CVE-2026-34525 aiohttp: aiohttp: Security bypass via multiple Host headers | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | alinfoot, anpicker, anthomas, bbrownin, bdettelb, bparees, caswilli, dfreiber, doconnor, drow, dschmidt, dtrifiro, ebourniv, ehelms, erezende, ggainey, hasun, jburrell, jdobes, jfula, jkoehler, jlanda, jmitchel, jowilson, jsamir, juwatts, jwong, kaycoth, kshier, lgallett, ljawale, lphiri, luizcosta, mhulan, nmoumoul, nweather, nyancey, omaciel, ometelka, orabin, osousa, pakotvan, pbohmill, pcreech, ptisnovs, rbobbitt, rbryant, rchan, sbunciak, simaishi, smallamp, smcdonal, stcannon, sthirugn, syedriko, teagle, tmalecek, ttakamiy, vkumar, weaton, xdharmai, yguenane, zzhou |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in aiohttp, an asynchronous HTTP client/server framework for Python. This vulnerability allows a remote attacker to send multiple Host headers in a single request. This can lead to unexpected behavior, potentially bypassing security controls or causing cache poisoning, which may result in integrity issues.
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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: | |||
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Description
OSIDB Bzimport
2026-04-01 21:02:12 UTC
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