RH
Product
Red Hat Enterprise Linux 9.6 Extended Update Support
by Red Hat · last CVE Oct 21, 2026
On CISA KEVExploited in the wild
488
CVEs
3
On KEV
10.0
Max CVSS
1
New 30D
Severity mix
Critical 91High 332Medium 62Low 3
Watch

Add Red Hat Enterprise Linux 9.6 Extended Update Support to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-27877
7.5
0%
Mar 27
Public dashboards discloses all direct mode datasources
Affected: All versions, or not specified
CVE-2026-27858
7.5
1%
Mar 27
Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory
Affected: All versions, or not specified
CVE-2026-27857
7.5
1%
Mar 27
Sending "NOOP (((...)))" command with 4000 parenthesis open+close results in ~1MB extra memory usage
Affected: All versions, or not specified
CVE-2025-59032
7.5
1%
Mar 27
ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response
Affected: All versions, or not specified
CVE-2026-33526
7.5
9%
Mar 26
Squid vulnerable to Denial of Service in ICP Request handling
Affected: All versions, or not specified
CVE-2026-32748
7.5
9%
Mar 26
Squid has Denial of Service in ICP Response handling
Affected: All versions, or not specified
CVE-2026-1519
7.5
2%
Mar 25
Excessive NSEC3 iterations cause high CPU load during insecure delegation validation
Affected: All versions, or not specified
CVE-2026-27651
7.5
1%
Mar 24
NGINX ngx_mail_auth_http_module vulnerability
Affected: All versions, or not specified
CVE-2026-4699
7.5
1%
Mar 24
Incorrect boundary conditions in the Layout: Text and Fonts component
Affected: All versions, or not specified
CVE-2026-4697
7.5
1%
Mar 24
Incorrect boundary conditions in the Audio/Video: Web Codecs component
Affected: All versions, or not specified
CVE-2026-4695
7.5
1%
Mar 24
Incorrect boundary conditions in the Audio/Video: Web Codecs component
Affected: All versions, or not specified
CVE-2026-4694
7.5
1%
Mar 24
Incorrect boundary conditions, integer overflow in the Graphics component
Affected: All versions, or not specified
CVE-2026-4693
7.5
1%
Mar 24
Incorrect boundary conditions in the Audio/Video: Playback component
Affected: All versions, or not specified
CVE-2026-4686
7.5
1%
Mar 24
Incorrect boundary conditions in the Graphics: Canvas2D component
Affected: All versions, or not specified
CVE-2026-4685
7.5
1%
Mar 24
Incorrect boundary conditions in the Graphics: Canvas2D component
Affected: All versions, or not specified
CVE-2026-4684
7.5
0%
Mar 24
Race condition, use-after-free in the Graphics: WebRender component
Affected: All versions, or not specified
CVE-2026-4424
7.5
1%
Mar 19
Libarchive: libarchive: information disclosure via heap out-of-bounds read in rar archive processing
Affected: All versions, or not specified
CVE-2026-27135
7.5
1%
Mar 18
nghttp2 Denial of service: Assertion failure due to the missing state validation
Affected: All versions, or not specified
CVE-2026-30922
7.5
1%
Mar 18
pyasn1 Vulnerable to Denial of Service via Unbounded Recursion
Affected: All versions, or not specified
CVE-2026-4111
7.5
1%
Mar 13
Libarchive: infinite loop denial of service in rar5 decompression via archive_read_data() in libarchive
Affected: All versions, or not specified
CVE-2026-32597
7.5
0%
Mar 12
PyJWT accepts unknown `crit` header extensions (RFC 7515 §4.1.11 MUST violation)
Affected: All versions, or not specified
CVE-2026-2229
7.5
1%
Mar 12
undici is vulnerable to Unhandled Exception in undici WebSocket Client Due to Invalid server_max_window_bits Validation
Affected: All versions, or not specified
CVE-2026-1528
7.5
0%
Mar 12
undici is vulnerable to Malicious WebSocket 64-bit length overflows undici parser and crashes the client
Affected: All versions, or not specified
CVE-2026-1526
7.5
1%
Mar 12
undici is vulnerable to Unbounded Memory Consumption in undici WebSocket permessage-deflate Decompression
Affected: All versions, or not specified
CVE-2026-3497
7.5
2%
Mar 12
Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions
Affected: All versions, or not specified
CVE-2026-26130
7.5
3%
Mar 10
ASP.NET Core Denial of Service Vulnerability
Affected: All versions, or not specified
CVE-2026-25679
7.5
1%
Mar 6
Incorrect parsing of IPv6 host literals in net/url
Affected: All versions, or not specified
CVE-2026-27137
7.5
1%
Mar 6
Incorrect enforcement of email constraints in crypto/x509
Affected: All versions, or not specified
CVE-2025-69534
7.5
1%
Mar 5
Python-Markdown version 3.8 contain a vulnerability where malformed HTML-like sequences can cause html.parser.HTMLParser to raise an unhandled AssertionError during Markdown…
Affected: All versions, or not specified
CVE-2026-20652
7.5
1%
Feb 11
The issue was addressed with improved memory handling
Affected: All versions, or not specified
CVE-2025-61726
7.5
2%
Jan 28
Memory exhaustion in query parameter parsing in net/url
Affected: All versions, or not specified
CVE-2026-0994
7.5
1%
Jan 23
Denial of Service in Python Protobuf
Affected: All versions, or not specified
CVE-2026-21945
7.5
1%
Jan 20
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Security)
Affected: All versions, or not specified
CVE-2025-59465
7.5
4%
Jan 20
A malformed `HTTP/2 HEADERS` frame with oversized, invalid `HPACK` data can cause Node.js to crash by triggering an unhandled `TLSSocket` error `ECONNRESET`
Affected: All versions, or not specified
CVE-2026-23490
7.5
1%
Jan 16
pyasn1 has a DoS vulnerability in decoder
Affected: All versions, or not specified
CVE-2026-21441
7.5
3%
Jan 7
urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)
Affected: All versions, or not specified
CVE-2025-13502
7.5
1%
Nov 25
Webkit: webkitgtk / wpe webkit: out-of-bounds read and integer underflow vulnerability leading to dos
Affected: All versions, or not specified
CVE-2023-52356
7.5
2%
Jan 25
Libtiff: segment fault in libtiff in tiffreadrgbatileext() leading to denial of service
Affected: All versions, or not specified
CVE-2023-52355
7.5
2%
Jan 25
Libtiff: tiffrasterscanlinesize64 produce too-big size and could cause oom
Affected: All versions, or not specified
CVE-2026-48526
7.4
0%
May 28
PyJWT: Public-key JWK accepted as HMAC secret enables forged HS256 tokens when mixed families are allowed
Affected: All versions, or not specified
CVE-2026-42246
7.4
0%
May 9
net-imap vulnerable to STARTTLS stripping via invalid response timing
Affected: All versions, or not specified
CVE-2026-42011
7.4
0%
May 7
Gnutls: gnutls: security bypass due to incorrect name constraint handling
Affected: All versions, or not specified
CVE-2026-3833
7.4
1%
Apr 30
Gnutls: gnutls: policy bypass due to case-sensitive nameconstraints comparison
Affected: All versions, or not specified
CVE-2026-4371
7.4
0%
Mar 24
Out of bounds read in IMAP parsing
Affected: All versions, or not specified
CVE-2025-13947
7.4
0%
Dec 3
Webkit: webkitgtk: remote user-assisted information disclosure via file drag-and-drop
Affected: All versions, or not specified
CVE-2026-75092
7.3
0%
Sep 15
Leapp-repository: leapp-upgrade-el9toel10: leapp-upgrade-el9toel10: scan_mysql runs mysqld --validate-config as root and can load mysql-writable plugins
Affected: All versions, or not specified
CVE-2026-71226
7.3
0%
Aug 5
Libkcapi: memory corruption via uncanceled aio requests on error in libkcapi's one-shot aio path
Affected: All versions, or not specified
CVE-2026-16527
7.3
1%
Jul 30
Pcp: pcp pmproxy: unauthenticated access to /store endpoint allows bypassing pmcd access rules
Affected: All versions, or not specified
CVE-2026-58379
7.3
0%
Jul 3
Gimp: gimp: heap buffer overflow in read_channel_data()
Affected: All versions, or not specified
CVE-2026-12912
7.3
0%
Jun 29
Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image
Affected: All versions, or not specified
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