VDB
RHSA-2026%3A18039
RHSA-2026%3A18039
PUBLISHED
CVSS 8.100000381469727 HIGH
A flaw was found in ERB, a templating system for Ruby. An attacker who can trigger deserialization of untrusted data in a Ruby application can bypass existing protections. This vulnerability allows for arbitrary code execution by exploiting specific public methods that evaluate template source code, which were not properly guarded against deserialization attacks.
Risk Scores
CVSS 3.1
8.100000381469727
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | rubygem-bundler-0:2.2.33-166.el9_7.noarch as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 2.2.33-166.el9 |
| Red Hat | rubygem-json-debuginfo-0:2.5.1-166.el9_7.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 2.5.1-166.el9 |
| Red Hat | ruby-debugsource-0:3.0.7-166.el9_7.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 3.0.7-166.el9 |
| Red Hat | rubygem-io-console-debuginfo-0:0.5.7-166.el9_7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9) | 0.5.7-166.el9 |
| Red Hat | rubygem-psych-debuginfo-0:3.3.2-166.el9_7.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 3.3.2-166.el9 |
| Red Hat | rubygem-bundler-0:2.2.33-166.el9_7.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9) | 2.2.33-166.el9 |
| Red Hat | rubygems-0:3.2.33-166.el9_7.noarch as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 3.2.33-166.el9 |
| Red Hat | ruby-libs-0:3.0.7-166.el9_7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9) | 3.0.7-166.el9 |
| Red Hat | rubygem-json-debuginfo-0:2.5.1-166.el9_7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9) | 2.5.1-166.el9 |
| Red Hat | rubygem-json-0:2.5.1-166.el9_7.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 2.5.1-166.el9 |
| Red Hat | rubygem-rss-0:0.2.9-166.el9_7.noarch as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 0.2.9-166.el9 |
| Red Hat | ruby-debuginfo-0:3.0.7-166.el9_7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9) | 3.0.7-166.el9 |
| Red Hat | ruby-debugsource-0:3.0.7-166.el9_7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9) | 3.0.7-166.el9 |
| Red Hat | rubygem-bigdecimal-0:3.0.0-166.el9_7.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 3.0.0-166.el9 |
| Red Hat | rubygem-psych-debuginfo-0:3.3.2-166.el9_7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9) | 3.3.2-166.el9 |
| Red Hat | ruby-debuginfo-0:3.0.7-166.el9_7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9) | 3.0.7-166.el9 |
| Red Hat | ruby-debuginfo-0:3.0.7-166.el9_7.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 3.0.7-166.el9 |
| Red Hat | rubygem-bigdecimal-debuginfo-0:3.0.0-166.el9_7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9) | 3.0.0-166.el9 |
| Red Hat | rubygem-rake-0:13.0.3-166.el9_7.noarch as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | 13.0.3-166.el9 |
| Red Hat | rubygem-io-console-debuginfo-0:0.5.7-166.el9_7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9) | 0.5.7-166.el9 |
…and 144 more
Timeline
- May 18, 2026 CVE Published
- May 18, 2026 CVE Updated
- May 18, 2026 Distribution Patch
- May 18, 2026 Distribution Patch
- May 18, 2026 Security Advisory
- May 18, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:18039 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2461369 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_18039.json advisory
- https://access.redhat.com/security/cve/CVE-2026-41316 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-41316 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-41316 advisory
- https://github.com/ruby/erb/security/advisories/GHSA-q339-8rmv-2mhv advisory