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CVE-2026-53669VulnerabilityPublished Updated

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

Affects Red HatSource GCVE Database

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Authoritative record:CVE-2026-53669· Medium 5.1

Not known to be exploited · CVSS 5.1 Medium : upgrade Red Hat to 7.18.0 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
5.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 7.18.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Jul 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 30 Oct 2026.

What to do

Upgrade react-router to 7.18.0.

Affected software

ProductAffectedFixed in
remix-runreact-routerAffected
  • >=6.0.0 <7.18.0
Fixed in
  • 7.18.0

AI-suggested

Red Hat has released updated prometheus3.5 RPM packages (version 3.5.5-0.6.hum1) as part of the Hardened Images security update to address CVE-2026-53669. Applying these updates is the recommended remediation. Currently, no other mitigations are available or meet Red Hat's criteria for ease of use, applicability, and stability. Users should apply the official Red Hat update promptly to mitigate this vulnerability.

Description

CVE-2026-53669 is an open redirect vulnerability in React Router, a routing library for React applications. A remote attacker can exploit this flaw by crafting malicious links using backslashes in navigation components, causing users to be redirected to arbitrary external websites. This vulnerability affects multiple Red Hat products that include React Router components. The issue is rated medium severity and could facilitate phishing attacks. Red Hat has released updated RPM packages for prometheus3.5 as part of their Hardened Images security update to address this vulnerability. No mitigation other than applying the update is currently recommended.

References

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