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CVE-2026-111755VulnerabilityPublished Updated

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

Affects Red HatSource GCVE Database

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Authoritative record:CVE-2026-111755· High 8.2

Not known to be exploited · CVSS 8.2 High : upgrade Red Hat to 1.16.1 soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
8.2High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.16.1
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

  1. Disclosed: evidence found.

    CVE published 19 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    CISA SSVC: proof of concept public

  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

Timeline

  1. CVE ID reserved

    by GitHub, Inc.

    , 3 days before disclosure

  2. CVE published

    on cve.org

    , t = 0

  3. CISA SSVC assessment

    proof of concept public

    , 32 minutes after disclosure

  4. In Threat Radar

    record ingested

    , 7 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA SSVC, the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade follow-redirects to 1.16.1.

Affected software

ProductAffectedFixed in
follow-redirectsfollow-redirectsAffected
  • >=1.16.0 <1.16.1
Fixed in
  • 1.16.1

AI-suggested

A security update is available in the form of updated RPMs for Red Hat Hardened Images, including grafana12.4 version 12.4.13-0.3.hum1. Applying this update will address the vulnerability. No additional mitigations are indicated by the vendor advisory. Users should apply the update as per Red Hat's instructions available at https://images.redhat.com/.

Description

A vulnerability in the follow-redirects library used in Red Hat Hardened Images RPMs allows sensitive credential headers to be leaked to untrusted remote servers due to improper handling of cross-origin redirects. This occurs when applications specify sensitive headers containing special regular expression characters, which are not properly escaped, causing the filtering mechanism to fail. Exploitation requires a specific non-default configuration and an external redirect to an attacker-controlled host. The vulnerability is rated moderate severity by Red Hat and affects the grafana12.4 package updated to version 12.4.13-0.3.hum1.

References

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