Red Hat Security Advisory: resteasy security update
Affects Red Hat resteasySource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 7.4 High : upgrade Red Hat RESTEasy to 7.0.5.Final or 6.2.19.Final soon.
Data as of 9 Nov 2026, 02:52 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 7.4 |
|---|
- Patch
- Available – fixed in 7.0.5.Final, 6.2.19.Final
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 18 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.
What to do
Upgrade RESTEasy to 7.0.5.Final or 6.2.19.Final.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red HatRESTEasy | Affected
| Fixed in
|
| Red HatRESTEasy | Affected
| Fixed in
|
GitHubRESTEasypkg:github/RESTEasyOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Red Hat has released security updates for RESTEasy in Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Users should apply the provided updates (resteasy-3.0.26-16.el9_2.1 and related packages) as detailed in Red Hat advisory RHSA-2026:96077 and the update instructions at https://access.redhat.com/articles/11258. Applying these updates remediates the vulnerabilities. No additional mitigation steps are indicated by the vendor.
Description
Two security vulnerabilities were addressed in RESTEasy, a JBoss project for building RESTful Web Services and Java applications. The first is an unbounded image decode issue in IIOImageProvider that can lead to a decompression-bomb denial of service (CVE-2026-89059). The second involves the CorsFilter reflecting arbitrary origins with credentials when configured with a wildcard, potentially allowing unauthorized cross-origin requests (CVE-2026-89058). These issues affect Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions and related variants. Red Hat has issued security updates to remediate these vulnerabilities.
References
- access.redhat.com/errata/RHSA-2026:96077 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2519756 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2519775 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_96077.json (opens in a new tab)