Red Hat Security Advisory: satellite/iop-vulnerability-engine-rhel9 container image available as a Technology Preview
Affects Red Hat aiohttpSource GCVE Database
Not known to be exploited · CVSS 6.4 Medium.
Data as of 30 Oct 2026, 22:57 UTC
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:LExploitation evidence
Disclosed: evidence found.
CVE published 2 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
Affected software
| Product | Affected | Fixed in |
|---|---|---|
PyPIaiohttppkg:pypi/aiohttpOther threats | Affected
| Fixed in– |
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 not released an official fix for this vulnerability yet. Applications using AIOHTTP that load untrusted files via the CookieJar.load() function should implement input sanitization before loading to prevent malicious code execution. Users should follow Red Hat Satellite documentation for Lightspeed installation and configuration and monitor Red Hat advisories for future patches.
Description
CVE-2026-34993 is a vulnerability in the AIOHTTP Python asynchronous HTTP framework used by Red Hat Satellite's Lightspeed component. 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 process attacker-controlled files, which is not typical in default Red Hat deployments. Red Hat has not released a fix yet but provides guidance on mitigating the risk by sanitizing inputs before loading.
References
- access.redhat.com/errata/RHSA-2026:79380 (opens in a new tab)
- access.redhat.com/documentation/en-us/red_hat_satellite/6.18/html/updating_red_hat_satellite/index (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-34993 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-78677 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- catalog.redhat.com/software/containers/search (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_satellite/6.18/html/installing_satellite_server_in_a_connected_network_environment/performing-additional-configuration-on-server_satellite (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_satellite/6.18/html/installing_satellite_server_in_a_disconnected_network_environment/performing-additional-configuration (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_79380.json (opens in a new tab)