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CVE-2026-78667VulnerabilityPublished

Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.7 Product Security and Bug Fix Update

Affects Red HatSource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-78667· High 7.5

Not known to be exploited · CVSS 7.5 High : upgrade Red Hat http to 1.27.2 or 1.26.9 soon.

Data as of 30 Oct 2026, 03:01 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 1.27.2, 1.26.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 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 29 Oct 2026.

What to do

Upgrade net/http to 1.27.2 or 1.26.9.

Affected software

ProductAffectedFixed in
Go standard librarynet/httpAffected
  • >=1.27.0-0 <1.27.2
Fixed in
  • 1.27.2
Go standard librarynet/httpAffected
  • <1.26.9
Fixed in
  • 1.26.9
Gonet/httppkg:golang/net/httpOther threatsAffected
  • <1.26.9
  • >=1.27.0-0 <1.27.2
Fixed in
  • 1.26.9
  • 1.27.2

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

AI-suggested

Red Hat has released updated receptor packages that fix these denial of service vulnerabilities. Users of Red Hat Ansible Automation Platform 2.7 and Red Hat Ansible Inside 1.5 should apply the provided updates as documented in the official Red Hat advisory and product documentation. No additional mitigation steps are indicated beyond applying these updates.

Description

Red Hat Ansible Automation Platform 2.7 includes fixes for three denial of service vulnerabilities in the receptor component related to HTTP/2 SETTINGS frames, crafted HTTP Range headers, and multiple ECH outer extension references. These issues could allow an attacker to cause service disruption. Red Hat has released updates addressing these flaws.

References

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