Public vulnerability disclosure
CVE-2026-89059
Resteasy-core: resteasy: iioimageprovider unbounded image decode (decompression-bomb dos)
publishedCWE-409
A flaw was found in RESTEasy's IIOImageProvider, which decodes attacker-supplied image request bodies without enforcing any limit on the declared image dimensions or pixel count. A remote, unauthenticated attacker can send a small crafted image declaring enormous dimensions to trigger a very large memory allocation, exhausting the JVM heap and resulting in a denial of service.
Technical severity7.5 highCVSS 3.1 · CNA: redhat
Published2026-09-18Source updated 2026-11-04
Collected2026-11-042 attributed sources
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
Red Hat RESTEasy
https://github.com/resteasy/resteasy |
≥ 0; < 6.2.19.Final (affected, maven) ≥ 7.0.0.Alpha1; < 7.0.5.Final (affected, maven) Other versions: unaffected |
CNA: redhat |
| Red Hat build of Quarkus 3.27.6.redhat Red Hat org.jboss.resteasy/resteasy-core
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html |
≥ 6.2.19.Final-redhat-00003; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat build of Quarkus 3.33.4.redhat Red Hat org.jboss.resteasy/resteasy-core
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html |
≥ 6.2.19.Final-redhat-00003; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 10 Red Hat dogtag-pki
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:11.9.0-6.el10_2.1; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 9 Red Hat resteasy
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:3.0.26-20.el9_8.1; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat JBoss Enterprise Application Platform 8.1 Red Hat resteasy-core
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: unaffected |
CNA: redhat |
| Red Hat build of Apache Camel 4 for Quarkus 3 Red Hat resteasy-core
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat build of Apicurio Registry 3 Red Hat resteasy-core
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat build of Debezium 3 Red Hat resteasy-core
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Build of Keycloak Red Hat resteasy-core
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Build of Keycloak Red Hat rhbk/keycloak-rhel9-operator
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Certificate System 10 Red Hat redhat-pki:10/redhat-pki
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Certificate System 11 Red Hat redhat-pki
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 8 Red Hat pki-core:10.6/pki-core
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: unaffected |
CNA: redhat |
| Red Hat Enterprise Linux 9 Red Hat jackson-jaxrs-providers
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: unaffected |
CNA: redhat |
| Red Hat Enterprise Linux 9 Red Hat pki-core
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: unaffected |
CNA: redhat |
| Red Hat Fuse 7 Red Hat resteasy-core
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Fuse 7 Red Hat resteasy-jaxrs
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat JBoss Enterprise Application Platform 7 Red Hat jboss-eap-7/eap74-els-openjdk11-openshift-rhel8
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat JBoss Enterprise Application Platform 7 Red Hat jboss-eap-7/eap74-els-openjdk17-openshift-rhel8
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat JBoss Enterprise Application Platform 7 Red Hat jboss-eap-7/eap74-els-openjdk8-openshift-rhel8
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat JBoss Enterprise Application Platform 7 Red Hat resteasy-jaxrs
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat JBoss Enterprise Application Platform 8 Red Hat resteasy-core
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat JBoss Enterprise Application Platform Expansion Pack Red Hat resteasy-core
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6 Red Hat candlepin
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: unaffected |
CNA: redhat |
| Red Hat Single Sign-On 7 Red Hat resteasy-jaxrs
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 7.5 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CNA: redhat |
Exploit evidence
- https://bugzilla.redhat.com/show_bug.cgi?id=2519756
exploit · ADP: CISA-ADP - https://github.com/resteasy/resteasy/security/advisories/GHSA-m4pc-7gc7-9vw2
exploit · ADP: CISA-ADP
References
- https://access.redhat.com/errata/RHSA-2026:83082CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:83520CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:85234CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:92408CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:95221CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-89059CNA: redhat · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2519756CNA: redhat · issue-tracking, x_refsource_REDHAT
- https://github.com/resteasy/resteasy/commit/7c7e6b37c8b2451a37aed9cdc6978b447456bacbCNA: redhat
- https://github.com/resteasy/resteasy/security/advisories/GHSA-m4pc-7gc7-9vw2CNA: redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2519756ADP: CISA-ADP · exploit
- https://github.com/resteasy/resteasy/security/advisories/GHSA-m4pc-7gc7-9vw2ADP: CISA-ADP · exploit
For agents and automation
Read public disclosures for free as Markdown or JSON. Compatible browsers also expose native WebMCP tools to search disclosures, read this page, and discover API access.
Use the ontology-linked Cyber API with x402 pay per request, or a Y2 Pro or Elite API key with the intel:cyber scope.
Endpoints and access details
https://api.y2.dev/api/v2/cyber/cveshttps://api.y2.dev/api/v2/cyber/cves/{cveId}
A workspace owner or admin can create a Pro or Elite API key. Send Authorization: Bearer <Y2_API_KEY> from your trusted agent runtime.
For x402, omit Authorization and read the HTTP 402 payment challenge before signing a retry. Public browser tools do not make payments.