RHSA-2026:17789 - Security Advisory

Topic

New Red Hat build of Cryostat 4.2.0 on RHEL 9 container images are now available.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The Cryostat 4 on RHEL 9 container images have been updated to fix several bugs.

Users of Cryostat 4 on RHEL 9 container images are advised to upgrade to these updated images, which contain backported patches to fix these bugs and add these enhancements. Users of these images are also encouraged to rebuild all container images that depend on these images.

Security Fix(es):

• golang.org/x/image: Denial of Service via malformed WEBP image parsing (CVE-2026-33813)
• follow-redirects: Information disclosure via cross-domain redirects (CVE-2026-40895)
• io.quarkus:quarkus-vertx-http: Authorization bypass via semicolons in HTTP requests (CVE-2026-39852)
• github.com/jackc/pgx: Memory-safety vulnerability (CVE-2026-33815, CVE-2026-33816)
• github.com/go-jose/go-jose: Go JOSE: Denial of Service via crafted JSON Web Encryption (JWE) object (CVE-2026-34986)
• lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)
• netty: Denial of Service via HTTP/2 CONTINUATION frame flood (CVE-2026-33871)
• io.netty/netty-codec-http: Request smuggling via incorrect parsing of HTTP/1.1 chunked transfer encoding extension values (CVE-2026-33870)
• path-to-regexp: Denial of Service via crafted regular expressions (CVE-2026-4926)
• undici: HTTP Request Smuggling and Denial of Service due to duplicate Content-Length headers (CVE-2026-1525)
• google.golang.org/grpc: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation (CVE-2026-33186)
• undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression (CVE-2026-1526)
• undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter (CVE-2026-2229)
• undici: Denial of Service via crafted WebSocket frame with large length (CVE-2026-1528)
• io.vertx/vertx-core: static handler component cache can be manipulated to deny the access to static files (CVE-2026-1002)

You can find images updated by this advisory in the Red Hat Container Catalog (see the References section).

Solution

You can download the Cryostat 4 on RHEL 9 container images that this update provides from the Red Hat Container Registry at registry.access.redhat.com. Installation instructions for your platform are available in the Red Hat Container Catalog (see the References section).

Dockerfiles and scripts should be amended to refer to this new image specifically or to the latest image generally.

Affected Products

• Cryostat 4 x86_64

Fixes

• BZ - 2430180 - CVE-2026-1002 io.vertx/vertx-core: static handler component cache can be manipulated to deny the access to static files
• BZ - 2447142 - CVE-2026-1526 undici: undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression
• BZ - 2447143 - CVE-2026-2229 undici: Undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter
• BZ - 2447144 - CVE-2026-1525 undici: Undici: HTTP Request Smuggling and Denial of Service due to duplicate Content-Length headers
• BZ - 2447145 - CVE-2026-1528 undici: undici: Denial of Service via crafted WebSocket frame with large length
• BZ - 2449833 - CVE-2026-33186 google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation
• BZ - 2451867 - CVE-2026-4926 path-to-regexp: path-to-regexp: Denial of Service via crafted regular expressions
• BZ - 2452453 - CVE-2026-33870 io.netty/netty-codec-http: Netty: Request smuggling via incorrect parsing of HTTP/1.1 chunked transfer encoding extension values
• BZ - 2452456 - CVE-2026-33871 netty: Netty: Denial of Service via HTTP/2 CONTINUATION frame flood
• BZ - 2453496 - CVE-2026-4800 lodash: lodash: Arbitrary code execution via untrusted input in template imports
• BZ - 2455470 - CVE-2026-34986 github.com/go-jose/go-jose/v3: github.com/go-jose/go-jose/v4: Go JOSE: Denial of Service via crafted JSON Web Encryption (JWE) object
• BZ - 2455972 - CVE-2026-33816 github.com/jackc/pgx/v5: github.com/jackc/pgx: Memory-safety vulnerability
• BZ - 2455975 - CVE-2026-33815 github.com/jackc/pgx/v5: github.com/jackc/pgx: Memory-safety vulnerability
• BZ - 2457819 - CVE-2026-39852 io.quarkus:quarkus-vertx-http: io.quarkus:quarkus-vertx-http: Authorization bypass via semicolons in HTTP requests
• BZ - 2460221 - CVE-2026-33813 golang.org/x/image: golang: golang.org/x/image: Denial of Service via malformed WEBP image parsing
• BZ - 2460297 - CVE-2026-40895 follow-redirects: follow-redirects: Information disclosure via cross-domain redirects

CVEs

• CVE-2024-12086
• CVE-2025-14087
• CVE-2025-14512
• CVE-2026-1002
• CVE-2026-1525
• CVE-2026-1526
• CVE-2026-1528
• CVE-2026-2100
• CVE-2026-2229
• CVE-2026-4519
• CVE-2026-4786
• CVE-2026-4800
• CVE-2026-4878
• CVE-2026-4926
• CVE-2026-6100
• CVE-2026-27877
• CVE-2026-29111
• CVE-2026-31790
• CVE-2026-32282
• CVE-2026-32283
• CVE-2026-33186
• CVE-2026-33813
• CVE-2026-33815
• CVE-2026-33816
• CVE-2026-33870
• CVE-2026-33871
• CVE-2026-34982
• CVE-2026-34986
• CVE-2026-39852
• CVE-2026-40355
• CVE-2026-40356
• CVE-2026-40895
• CVE-2026-41035

References

• https://access.redhat.com/security/updates/classification/#important