Bug 2486697 (CVE-2026-40983)

Summary:	CVE-2026-40983 micrometer: micrometer-core: Micrometer: Denial of Service via specially crafted gRPC requests
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	abrianik, anthomas, ant, anujha, aschwart, asoldano, aszczucz, ataylor, avibelli, bbaranow, bgeorges, bmaxwell, boliveir, bstansbe, ccranfor, cescoffi, chfoley, cmah, dandread, dbruscin, dkreling, dlofthou, drichtar, ehelms, ehugonne, ewittman, fmariani, fmongiar, ggainey, ggrzybek, gmalinko, gsmet, gtanzill, istudens, ivassile, iweiss, janstey, jbuscemi, jkoehler, jmartisk, jnethert, jpasqual, jpechane, jraez, juwatts, jwon, kaycoth, kgaikwad, kvanderr, lphiri, lthon, manderse, mcarlett, mhulan, mosmerov, mposolda, msvehla, nipatil, nmoumoul, nwallace, olubyans, osousa, pantinor, parichar, pberan, pcreech, pdelbell, pesilva, pgallagh, pjindal, pmackay, probinso, rchan, rgodfrey, rguimara, rkubis, rmartinc, rruss, rstancel, rstepani, rsvoboda, sbiarozk, sdawley, smallamp, ssilvert, sthorger, swoodman, tasato, tcunning, thjenkin, tmalecek, tqvarnst, vdosoudi, vmuzikar, yfang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in Micrometer. A remote attacker can provide specially crafted gRPC (gRPC Remote Procedure Call) requests, which may lead to a denial-of-service (DoS) condition. This vulnerability allows an attacker to disrupt the availability of the affected system.	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:

Description OSIDB Bzimport 2026-06-09 05:01:15 UTC

In Micrometer, it is possible for a user to provide specially crafted gRPC requests that may cause a denial-of-service (DoS) condition.

Affected versions:
Micrometer 1.16.0 through 1.16.5; 1.15.0 through 1.15.11.

Comment 3 errata-xmlrpc 2026-07-08 18:28:24 UTC

This issue has been addressed in the following products:

  Red Hat Build of Apache Camel 4.18 for Quarkus 3.33

Via RHSA-2026:36839 https://access.redhat.com/errata/RHSA-2026:36839