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CVE-2026-34993VulnerabilityPublished Updated

Red Hat Security Advisory: satellite/iop-vulnerability-engine-rhel9 container image available as a Technology Preview

Affects Red HatSource GCVE Database

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Authoritative record:CVE-2026-34993· Medium 6.4

Not known to be exploited · CVSS 6.4 Medium : upgrade Red Hat aiohttp to 3.14.0 when convenient.

Data as of 30 Oct 2026, 00:05 UTC

CVSS 3.1 base score
6.4Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 3.14.0
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Jun 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 aiohttp to 3.14.0.

Affected software

ProductAffectedFixed in
aio-libsaiohttpAffected
  • <3.14.0
Fixed in
  • 3.14.0
PyPIaiohttppkg:pypi/aiohttpOther threatsAffected
  • <3.14.0
Fixed in
  • 3.14.0

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

AI-suggested

Red Hat advises that applications using AIOHTTP and configured to load untrusted files via CookieJar.load() should implement input sanitization to prevent malicious code injection. Users should follow Red Hat Satellite documentation for installation and configuration guidance. Since this is a Technology Preview container image, evaluate its use carefully in production environments.

Description

CVE-2026-34993 is a vulnerability in the AIOHTTP Python asynchronous HTTP framework used by Red Hat Lightspeed in Satellite. The flaw allows potential arbitrary code execution when untrusted input is loaded via the CookieJar.load() function. Exploitation requires an application to be configured to load attacker-controlled files, which is not typical in most Red Hat deployments.

References

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