CVE-2026-19730: Red Hat Enterprise Linux 10 · Incomplete Cleanup
Affects Red Hat Enterprise Linux 10Source CVE Database V5
Not known to be exploited · CVSS 4.2 Medium.
Data as of 12 Nov 2026, 23:24 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 4.2 |
|---|
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 13 Aug 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 13 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10podman | Affected– | Fixed in– |
| Red Hat Enterprise Linux 9podman | Affected– | Fixed in– |
| Red Hat Ansible Automation Platform 2ansible-automation-platform-24/eda-controller-rhel8 | Affected– | Fixed in– |
| Red Hat Ansible Automation Platform 2ansible-automation-platform-25/eda-controller-rhel8 | Affected– | Fixed in– |
| Red Hat Ansible Automation Platform 2ansible-automation-platform-26/eda-controller-rhel9 | Affected– | Fixed in– |
| Red Hat Ansible Automation Platform 2ansible-automation-platform-27/eda-controller-rhel9 | Affected– | Fixed in– |
AI-suggested
A fix is available as indicated by the Red Hat advisory. Users should apply the official patch or update their Red Hat Enterprise Linux 10 systems to a fixed version once released. Until then, users should be aware that 'podman quadlet install --replace' may not fully remove old Quadlet content and verify Quadlet files manually after replacement to ensure no unintended options persist.
Description
CVE-2026-19730 is a vulnerability in Red Hat Enterprise Linux 10 related to the 'podman quadlet install --replace' command. The command fails to truncate the destination file when replacing it, leading to leftover content from the original file if the new file is smaller. This can cause security-sensitive options from the old Quadlet to persist unintentionally, potentially resulting in undesirable behavior such as unauthorized capabilities or mounts being retained in containers. There is no risk of information leakage since the user must already have access to the Quadlet. The issue arises from the use of file open flags without O_TRUNC and a non-truncating fallback copy method.
References
- access.redhat.com/security/cve/CVE-2026-19730 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2508234 (opens in a new tab)
- github.com/podman-container-tools/podman/issues/29013 (opens in a new tab)
- github.com/podman-container-tools/podman/security/advisories/GHSA-fx76-2j3w-2mx6 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:70201 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:69961 (opens in a new tab)