Bug 2427254 (CVE-2025-69228)

Summary: CVE-2025-69228 aiohttp: aiohttp: Denial of Service via memory exhaustion from crafted POST request
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: adudiak, alinfoot, anpicker, anthomas, bbrownin, bdettelb, bparees, carogers, caswilli, dfreiber, doconnor, drow, dschmidt, dtrifiro, dymurray, ehelms, erezende, ggainey, haoli, hasun, hkataria, ibolton, jajackso, jburrell, jcammara, jdobes, jfula, jkoehler, jlanda, jmatthew, jmitchel, jmontleo, jneedle, jowilson, jsamir, juwatts, jwong, kaycoth, kegrant, koliveir, kshier, lphiri, mabashia, mattdavi, mhulan, nmoumoul, nyancey, omaciel, ometelka, orabin, osousa, pakotvan, pbohmill, pbraun, pcreech, pgaikwad, ptisnovs, rbryant, rchan, rjohnson, shvarugh, simaishi, slucidi, smallamp, smcdonal, sseago, stcannon, sthirugn, syedriko, teagle, tfister, thavo, tmalecek, ttakamiy, vkumar, weaton, xdharmai, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in aiohttp. A remote attacker can craft a malicious request that, when processed by an aiohttp server using the `Request.post()` method, causes the server's memory to fill uncontrollably. This can lead to a Denial of Service (DoS) by freezing the server, making it unavailable to legitimate users.
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Description OSIDB Bzimport 2026-01-06 00:01:29 UTC
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a request to be crafted in such a way that an AIOHTTP server's memory fills up uncontrollably during processing. If an application includes a handler that uses the Request.post() method, an attacker may be able to freeze the server by exhausting the memory. This issue is fixed in version 3.13.3.