Red Hat Security AdvisoryRHSA-2026:48036
osbuild-composer security update
Released 2026-07-29 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux AppStream E4S (v.9.2) osbuild-composer-76.1-6.el9_2, osbuild-composer-core-76.1-6.el9_2, osbuild-composer-dnf-json-76.1-6.el9_2 +1
Fixes 6 records
Priority MEDIUM 51
During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have…
CVSS 3.1CRITICAL 10.0· Network · No auth · No interaction · EPSS 0.00902 · Published 2026-02-05 · Partial fix · 1.24.13, 1.25.7 +1 CWE-295
Priority MEDIUM 40
If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00632 · Published 2026-04-08 · Partial fix · 1.25.9, 1.26.2 CWE-770
Priority MEDIUM 40
During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00626 · Published 2026-04-08 · Partial fix · 1.25.9, 1.26.2 CWE-770
Priority MEDIUM 40
url.Parse insufficiently validated the host/authority component and accepted some invalid URLs.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00827 · Published 2026-03-06 · Partial fix · 1.25.8, 1.26.1 CWE-425
Priority LOW 39
Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy mappings, possibly causing denial of service.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00361 · Published 2026-04-08 · Partial fix · 1.25.9, 1.26.2 CWE-295
Priority LOW 30
On Linux, if the target of Root.Chmod is replaced with a symlink while the chmod operation is in progress, Chmod can operate on the target of the symlink, even when the target lies outside the root.
CVSS 3.1MEDIUM 6.4· Local · High privileges · No interaction · EPSS 0.00297 · Published 2026-04-08 · Partial fix · 1.25.9, 1.26.2 CWE-59