High
resteasy, resteasy3.0 — security advisory
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.
- Products
- resteasy, resteasy3.0
- Affected versions
- 3.0.19-1, 3.0.19-2, 3.0.26-1, 3.0.26-1ubuntu0.1~esm1, 3.0.26-1~18.04, 3.0.26-1~18.04.1~esm1, 3.0.26-2, 3.0.26-3, 3.0.26-3ubuntu0.1, 3.0.26-6, 3.0.26-6ubuntu0.24.04.1, 3.0.6-3, 3.0.6-3ubuntu0.1~esm1, 3.6.2-2, 3.6.2-2ubuntu0.20.04.1~esm1, 3.6.2-2ubuntu0.22.04.1~esm1, 3.6.2-2ubuntu0.24.04.1~esm1, 3.6.2-3, 3.6.2-4
- Fixed versions
- Not specified
- CVEs
- CVE-2026-89059
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:30 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-89059
resteasy
Fixed versions: Not specified
resteasy3.0
Fixed versions: Not specified
resteasy
Fixed versions: Not specified
resteasy3.0
Fixed versions: Not specified
resteasy3.0
Fixed versions: Not specified
resteasy
Fixed versions: Not specified
resteasy3.0
Fixed versions: Not specified
resteasy
Fixed versions: Not specified
resteasy
Fixed versions: Not specified
resteasy3.0
Fixed versions: Not specified
resteasy
Fixed versions: Not specified
resteasy3.0
Fixed versions: Not specified
Complete source record
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],
"modified": "2026-10-17T13:01:16.363384906Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-89059",
"https://www.cve.org/CVERecord?id=CVE-2026-89059",
"https://bugzilla.redhat.com/show_bug.cgi?id=2519756",
"https://github.com/resteasy/resteasy/security/advisories/GHSA-m4pc-7gc7-9vw2",
"https://redhat.atlassian.net/browse/RESTEASY-3793",
"https://access.redhat.com/security/cve/CVE-2026-89059",
"https://github.com/resteasy/resteasy/commit/7c7e6b37c8b2451a37aed9cdc6978b447456bacb"
]
},
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"value": "CVE-2026-89059",
"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 361447,
"published_at": "2026-09-18T08:17:00+00:00"
}