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CVE-2026-115754VulnerabilityPublished

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Affects Red HatSource GCVE Database

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Authoritative record:CVE-2026-115754· Low 2.3

Not known to be exploited · CVSS 2.3 Low : upgrade Red Hat serialize-javascript to 7.1.3 when convenient.

Data as of 3 Nov 2026, 04:45 UTC

CVSS 4.0 base score
2.3Low
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.02.3
CNA (VulnCheck)CVSS 3.14.7
Patch
Available – fixed in 7.1.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Oct 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 2 Nov 2026.

What to do

Upgrade serialize-javascript to 7.1.3.

Affected software

ProductAffectedFixed in
yahooserialize-javascriptAffected
  • >=7.0.1 <7.1.3
Fixed in
  • 7.1.3
npmserialize-javascriptpkg:npm/serialize-javascriptOther threatsAffected
  • >=7.0.1 <7.1.3
Fixed in
  • 7.1.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A security update is available and should be applied to affected Red Hat Hardened Images RPMs, specifically updating the grafana12.4 package to version 12.4.13-0.6.hum1 or later. This update addresses the vulnerabilities including CVE-2026-115754. Users should follow Red Hat's official update procedures as detailed in the advisory at https://images.redhat.com/. No additional mitigations are specified or required beyond applying the update.

Description

A security update for Red Hat Hardened Images RPMs includes fixes for multiple vulnerabilities in the grafana12.4 package, including CVE-2026-115754. This particular CVE involves a flaw in the serialize-javascript library that can lead to cross-site scripting (XSS) attacks by allowing crafted function source text containing unescaped script closing tags. Exploitation requires the attacker to manipulate serialized JavaScript functions, which is uncommon in typical Red Hat environments, limiting the impact. The update addresses these issues by providing patched RPMs for affected architectures.

References

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