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CVE-2026-17615VulnerabilityPublished Updated

Red Hat Security Advisory: resteasy security update

Affects Red Hat resteasySource GCVE Database

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Authoritative record:CVE-2026-17615· High 7.5

Not known to be exploited · CVSS 7.5 High.

Data as of 29 Oct 2026, 07:55 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.17.5
EPSS
0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 31 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Build of Apache Camel 3.33.3.SP1org.jboss.resteasy/resteasy-coreAffected–Fixed in–
Red Hat build of Keycloak 26.6rhbk/keycloak-operator-bundleAffected–Fixed in–
Red Hat build of Keycloak 26.6rhbk/keycloak-rhel9Affected–Fixed in–
Red Hat build of Keycloak 26.6rhbk/keycloak-rhel9-operatorAffected–Fixed in–
Red Hat build of Keycloak 26.6.7keycloak/rhbk-rhel9-operatorAffected–Fixed in–
Red Hat build of Keycloak 26.6.7resteasy-coreAffected–Fixed in–

AI-suggested

Red Hat has released updated packages for Red Hat Enterprise Linux 9.6 Extended Update Support and related variants that fix this vulnerability. Users should apply these official updates as described in Red Hat advisory RHSA-2026:77297 and the referenced article https://access.redhat.com/articles/11258 to remediate the issue. No additional mitigation steps are indicated by the vendor.

Description

A security vulnerability (CVE-2026-17615) in RESTEasy's resteasy-core component allows remote unauthenticated attackers to read files. RESTEasy is a JBoss project framework for building RESTful Web Services and Java applications. Red Hat has issued a security advisory and released updates for Red Hat Enterprise Linux 9.6 Extended Update Support to address this issue.

References

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