Red Hat Security AdvisoryRHSA-2026:51288
container-tools:rhel8 security update
Released 2026-08-06 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux AppStream AUS (v.8.6) aardvark-dns-2:1.0.1-40.module+el8.6.0+24209+25a14987.x86_64::container-tools:rhel8, buildah-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.src::container-tools:rhel8, buildah-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.x86_64::container-tools:rhel8 +47
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) aardvark-dns-2:1.0.1-40.module+el8.6.0+24209+25a14987.x86_64::container-tools:rhel8, buildah-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.src::container-tools:rhel8, buildah-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.x86_64::container-tools:rhel8 +47
Fixes 10 records
Priority MEDIUM 57
Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation.
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.0691 · Published 2026-05-22 · Partial fix · 0.52.0 CWE-295
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 43
The net/url package does not set a limit on the number of query parameters in a query.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.02292 · Published 2026-01-28 · Partial fix · 1.24.12, 1.25.6 CWE-770
Priority MEDIUM 42
When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint.
CVSS 3.1HIGH 8.2· Network · No auth · No interaction · EPSS 0.00346 · Published 2026-04-08 · Partial fix · 1.26.2 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 33
Within HostnameError.Error(), when constructing an error string, there is no limit to the number of hosts that will be printed out.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.0049 · Published 2025-12-02 · Partial fix · 1.24.11, 1.25.5 CWE-295
Priority LOW 30
archive/zip uses a super-linear file name indexing algorithm that is invoked the first time a file in an archive is opened.
CVSS 3.1MEDIUM 6.5· Network · No auth · User interaction · EPSS 0.00738 · Published 2026-01-28 · Partial fix · 1.24.12, 1.25.6 CWE-770
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