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Red Hat Security Advisory

RHSA-2026:91249

Red Hat AI Base Images 3.5.5 (Neuron)

Released 2026-10-27 · Red Hat rating Critical · View on Red Hat →

Fixed in

Fixes 50 records

TI-2026-65598 CVE-2026-103111 · GHSA-mq4r-p73m-gphj

Out-of-bounds write in PCRE2

Priority HIGH 66

PCRE2 before 10.49, when there is an attacker-controlled regular expression and certain JIT API usage, allows an out-of-bounds write with arbitrary data.

CVSS 3.1HIGH 7.6 Network Low privileges No interaction EPSS 0.00269 Published 2026-09-30 Partial fix · 10.49 CWE-787
Priority MEDIUM 47

Issue summary: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification.

CVSS 3.1HIGH 8.8 Network Low privileges No interaction EPSS 0.04002 Published 2026-06-09 Partial fix · 4.0.1, 3.6.3 +5 CWE-416
Priority MEDIUM 47

Issue Summary: Cryptographic Message Services (CMS) processing fails to perform sufficient input validation on the cipher and tag length fields of AuthEnvelopedData containers, leading to various potential compromises.

CVSS 3.1CRITICAL 9.1 Network No auth No interaction EPSS 0.01057 Published 2026-06-09 Fixed in 4.0.1, 3.6.3 +3 CWE-354
Priority MEDIUM 42

PCRE2 before 10.48 allows a pcre2_dfa_match out-of-bounds write because reuse of a cached workspace block, in a recursive DFA matching workspace, lacks a size check (even though a newly allocated block, for the same purp…

CVSS 3.1HIGH 8.2 Network No auth No interaction EPSS 0.00425 Published 2026-09-05 Partial fix · 10.48 CWE-424
Priority MEDIUM 41

Issue summary: Remote peer may exhaust heap memory of the QUIC server or client by flooding it with packets containing PATH_CHALLENGE frames.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.01049 Published 2026-06-09 Partial fix · 4.0.1, 3.6.3 +2 CWE-1325
Priority MEDIUM 41

Issue summary: Applications using RSASVE key encapsulation to establish a secret encryption key can send contents of an uninitialized memory buffer to a malicious peer.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.01049 Published 2026-04-07 Partial fix · 3.6.2, 3.5.6 +3 CWE-754
Priority MEDIUM 40

A flaw was found in libxml2 with Python bindings enabled.

CVSS 3.1HIGH 8.5 Network Low privileges No interaction EPSS 0.00658 Published 2026-09-08 Partial fix · 2.12.5-10.el10_2.4, 2.12.5-9.el10_0.9 +43 CWE-763
TI-2026-33224 CVE-2026-45445 · GHSA-v446-xwfm-x7mr

AES-OCB IV Ignored on EVP_Cipher() Path

Priority MEDIUM 40

Issue summary: When an application drives an AES-OCB context through the public EVP_Cipher() one-shot interface, the application-supplied initialisation vector (IV) is silently discarded.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00704 Published 2026-06-09 Fixed in 4.0.1, 3.6.3 +3 CWE-325
Priority MEDIUM 40

Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive CPU.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.0056 Published 2026-06-02 Partial fix · 1.25.11, 1.26.4 CWE-407
Priority MEDIUM 40

Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00798 Published 2026-05-07 Partial fix · 1.25.10, 1.26.3
Priority MEDIUM 40

Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00784 Published 2026-05-07 Partial fix · 1.25.10, 1.26.3 CWE-770
Priority MEDIUM 40

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00875 Published 2026-05-07 Partial fix · 1.25.10, 1.26.3 CWE-415
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

When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly applie…

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00661 Published 2026-03-06 Partial fix · 1.26.1 CWE-295
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
TI-2026-24810 CVE-2026-32281 · GHSA-gjvh-7jh8-7xhm

Inefficient policy validation in crypto/x509

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 36

On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00232 Published 2026-07-08 Partial fix · 1.25.12, 1.26.5 +1 CWE-61
Priority LOW 35

An unrecovered panic in the event stream header decoder in Amazon AWS SDK for Go v2 before release-2026-03-23 might allow an unauthenticated remote actor to terminate the consuming application process via a crafted event…

CVSS 4.0HIGH 8.2 Network No auth No interaction EPSS 0.00305 Published 2026-09-11 Partial fix · 2026-03-23 CWE-248
Priority LOW 35

In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval xpointer length saturation.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00157 Published 2026-09-05 Partial fix · 2.15.4 CWE-122
Priority LOW 33

In xmlIO in libxml2 before 2.15.4, an inconsistency in xmlOutputWriteCallback and xmlBufUse causes negative lengths to reach write callbacks, aka a lack of a check for integer overflow before calling writecallback.

CVSS 3.1HIGH 7.3 Local Low privileges No interaction EPSS 0.00194 Published 2026-09-05 Partial fix · 2.15.4 CWE-192
Priority LOW 32

The system certificate authority (CA) store in Red Hat products, distributed via ca-certificates RPM packages, included multiple root CA certificates of authorities, which signed intermediate CA certificates with weak pr…

CVSS 3.1MEDIUM 6.8 Network No auth User interaction EPSS 0.0031 Published 2026-10-21 Partial fix · 2026.2.92_v9.0.319-100.3.el10_2, 2026.2.92_v9.0.319-100.3.el10_0 +138 CWE-295
Priority LOW 31

Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0 allows a remote attacker to cause a denial-of-service via maliciously crafted XML input with improper entity resolution handl…

CVSS 4.0HIGH 7.0 Network No auth No interaction EPSS 0.00355 Published 2026-06-22 Partial fix · 2.11.0 CWE-416
Priority LOW 30

Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.

CVSS 3.1MEDIUM 5.3 Network No auth No interaction EPSS 0.00382 Published 2026-07-08 Partial fix · 1.25.12, 1.26.5 +1 CWE-201
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
Priority LOW 30

(*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name (SAN) entries.

CVSS 3.1MEDIUM 6.5 Network No auth No interaction EPSS 0.00591 Published 2026-06-02 Partial fix · 1.25.11, 1.26.4
TI-2026-28708 CVE-2026-39826 · GHSA-3v2c-x6q9-f697

Escaper bypass leads to XSS in html/template

Priority LOW 27

If a trusted template author were to write a <script> tag containing an empty 'type' attribute or a 'type' attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data passed into t…

CVSS 3.1MEDIUM 6.1 Network No auth User interaction EPSS 0.00371 Published 2026-05-07 Partial fix · 1.25.10, 1.26.3 CWE-116
Priority LOW 27

CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a <meta> tag's <content> attribute.

CVSS 3.1MEDIUM 6.1 Network No auth User interaction EPSS 0.00314 Published 2026-05-07 Partial fix · 1.25.10, 1.26.3 CWE-79
Priority LOW 27

Context was not properly tracked across template branches for JS template literals, leading to possibly incorrect escaping of content when branches were used.

CVSS 3.1MEDIUM 6.1 Network No auth User interaction EPSS 0.00295 Published 2026-04-08 Partial fix · 1.25.9, 1.26.2 CWE-79
Priority LOW 25

tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the "old GNU sparse map" format.

CVSS 3.1MEDIUM 5.5 Local No auth User interaction EPSS 0.00295 Published 2026-04-08 Partial fix · 1.25.9, 1.26.2 CWE-770
Priority LOW 25

pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels.

CVSS 4.0MEDIUM 5.6 Network High privileges User interaction EPSS 0.00292 Published 2026-07-29 Partial fix · 26.2, 26.2.0 CWE-36
Priority LOW 18

Issue summary: When using the low-level OCB API directly with AES-NI or<br>other hardware-accelerated code paths, inputs whose length is not a multiple<br>of 16 bytes can leave the final partial block unencrypted and una…

CVSS 3.1MEDIUM 4.0 Local No auth No interaction EPSS 0.00132 Published 2026-01-27 Partial fix · 3.6.1, 3.5.5 +4 CWE-325
TI-2026-21589 CVE-2026-27139 · GHSA-rv83-g57w-fr8j

FileInfo can escape from a Root in os

Priority LOW 12

On Unix platforms, when listing the contents of a directory using File.ReadDir or File.Readdir the returned FileInfo could reference a file outside of the Root in which the File was opened.

CVSS 3.1LOW 2.5 Local Low privileges No interaction EPSS 0.00219 Published 2026-03-06 Partial fix · 1.25.8, 1.26.1 CWE-22
TI-2026-10322 CVE-2026-11979 · GHSA-h67q-h62w-5mjr

Stack-Based Buffer Overflow in libxml2

Priority LOW 9

libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --shell mode.

CVSS 4.0LOW 1.8 Local No auth User interaction EPSS 0.00148 Published 2026-06-29 Partial fix CWE-121