Red Hat Security AdvisoryRHSA-2026:82939
Red Hat Update Infrastructure 5.3 security update
Released 2026-10-14 · Red Hat rating Important · View on Red Hat →
Fixes 34 records
Priority HIGH 82
Successfully using libcurl to do a transfer to a specific HTTP origin (`hostA`) with **Digest** authentication and then changing the origin to a different one (`hostB`) for a second transfer, reusing the same handle, mak…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00688 · Published 2026-07-03 · Partial fix · 8.14.2, 8.16.1 +1 CWE-294
Priority HIGH 80
A flaw in curl’s cookie parsing logic allows a malicious HTTP server to set "super cookies" that bypass the Public Suffix List check.
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00661 · Published 2026-07-03 · Partial fix · 8.14.2, 8.16.1 +1 CWE-201
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 HIGH 66
PCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an attacker can provide a large pattern.
CVSS 3.1HIGH 7.4· Network · No auth · No interaction · EPSS 0.00348 · Published 2026-09-11 · Partial fix · 10.48 CWE-190
Priority MEDIUM 62
PCRE2 before 10.48 has a pcre2_match out-of-bounds read during the PCRE2_MATCH_INVALID_UTF matching of an invalid UTF subject.
CVSS 3.1MEDIUM 6.5· Network · No auth · No interaction · EPSS 0.00268 · Published 2026-09-11 · Partial fix · 10.48 CWE-125
Priority MEDIUM 45
Expat through 2.8.3 contains a denial of service vulnerability caused by quadratic algorithmic complexity in the storeAtts() function in xmlparse.c, where processing N specified attributes with non-normalized values trig…
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00742 · Published 2026-08-18 · Partial fix CWE-407
Priority MEDIUM 44
Expat before 2.8.5 fails to validate that a high surrogate in UTF-16 input is followed by a low surrogate, allowing malformed UTF-16 sequences to be accepted.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00403 · Published 2026-09-19 · Partial fix · 2.8.5 CWE-176
Priority MEDIUM 43
Issue summary: The DTLS retransmission logic does not correctly handle a handshake message write that is suspended part-way through.
CVSS 3.1HIGH 8.2· Network · No auth · No interaction · EPSS 0.00831 · Published 2026-09-29 · Partial fix · 4.0.3, 3.6.5 +5 CWE-125
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 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
Priority MEDIUM 40
A remote, unauthenticated TLS client can make a server crash or call through a freed pointer if its sni_callback assigns a different context to SSLSocket.context (the documented way to select a certificate per server nam…
CVSS 4.0CRITICAL 9.2· Network · No auth · No interaction · EPSS 0.00524 · Published 2026-09-30 · Partial fix · 3.10.22, 3.11.17 +4 CWE-416
Priority LOW 36
A flaw was found in sudo.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00321 · Published 2026-09-23 · Fixed in 1.9.17-10.p2.el10_2.7, 1.9.15-8.p5.el10_0.5 +15 CWE-863
Priority LOW 36
In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow.
CVSS 3.1HIGH 8.0· Local · No auth · No interaction · EPSS 0.00157 · Published 2026-09-05 · Partial fix · 2.15.4 CWE-121
Priority LOW 36
ssl.SSLContext.wrap_bio() didn't require the server_hostname argument to not be None if ssl.SSLContext.check_hostname was set.
CVSS 4.0HIGH 7.6· Network · No auth · User interaction · EPSS 0.00547 · Published 2026-09-30 · Partial fix · 3.10.22, 3.11.17 +4 CWE-297
Priority LOW 36
In BPF instructions that load/store a value from/to a scratch memory register the register index is an unsigned 32-bit integer and must not exceed 15, but libpcap BPF interpreter does not validate the value.
CVSS 3.1HIGH 8.7· Local · Low privileges · No interaction · EPSS 0.00108 · Published 2026-09-05 · Partial fix · 1.10.7 CWE-125
Priority LOW 35
In PCRE2 before 10.48, pcre2_jit_match mishandles a previously copied subject being passed in as a context.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00126 · Published 2026-09-11 · Partial fix · 10.48 CWE-590
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 35
sshd in OpenSSH before 10.4 does not always honor the minimum authentication delay.
CVSS 3.1MEDIUM 6.5· Network · No auth · No interaction · EPSS 0.00291 · Published 2026-07-08 · Partial fix · 10.4 CWE-770
Priority LOW 33
In xinclude in libxml2 before 2.15.4, xmlXIncludeProcess and xmlXIncludeProcessTree do not propagate parseFlags.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00186 · Published 2026-09-05 · Partial fix · 2.15.4 CWE-669
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 33
In libxml2 before 2.15.4, xmlDictAddQString in dict.c has an integer overflow and resultant heap-based buffer overflow.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00132 · Published 2026-09-05 · Partial fix · 2.15.4 CWE-190
Priority LOW 32
Vim is an open source, command line text editor.
CVSS 4.0HIGH 7.1· Local · No auth · User interaction · EPSS 0.00152 · Published 2026-08-18 · Partial fix · 9.2.0845 CWE-829
Priority LOW 32
A flaw was found in GDB's STABS debug format parser.
CVSS 3.1HIGH 7.0· Local · No auth · User interaction · EPSS 0.00133 · Published 2026-08-31 · Partial fix · 16.3-3.1.el10_2, 8.2-20.1.el8_10 +7 CWE-787
Priority LOW 29
When expanding paths that begin with a tilde (~) followed by a username, the internal parse_tilde function extracts the username to determine the user's home directory.
CVSS 4.0MEDIUM 6.6· Network · No auth · No interaction · EPSS 0.0022 · Published 2026-08-10 · Partial fix CWE-121
Priority LOW 28
PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant out-of-bounds write.
CVSS 3.1MEDIUM 6.5· Network · No auth · No interaction · EPSS 0.00247 · Published 2026-09-11 · Partial fix · 10.48 CWE-190
Priority LOW 26
PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide invalid UTF data.
CVSS 3.1MEDIUM 5.9· Network · No auth · No interaction · EPSS 0.00294 · Published 2026-09-11 · Partial fix · 10.48 CWE-125
Priority LOW 26
Converting crafted EUC_JISX0213 input to UCS-4 or the internal wide character encoding, for example with iconv, in the GNU C Library version 2.3 to 2.44 may result in the converter making no progress, causing the calling…
CVSS 3.1MEDIUM 5.9· Network · No auth · No interaction · EPSS 0.00358 · Published 2026-09-15 · Partial fix CWE-835
Priority LOW 26
Converting crafted SHIFT_JISX0213 input to UCS-4 or the internal wide character encoding, for example with iconv, in the GNU C Library version 2.3 to 2.44 may result in the converter making no progress, causing the calli…
CVSS 3.1MEDIUM 5.9· Network · No auth · No interaction · EPSS 0.00358 · Published 2026-09-15 · Partial fix CWE-835
Priority LOW 25
Calling tdelete on a sufficiently deep tree in the GNU C Library version 2.1 to 2.44 may write one pointer past the end of an alloca-allocated array on the stack, which may crash the application.
CVSS 3.1MEDIUM 5.6· Network · No auth · No interaction · EPSS 0.00226 · Published 2026-09-14 · Partial fix CWE-121
Priority LOW 23
Buffer overflow vulnerability has been found in "extension/readdir.c" program file of gawk (ftype() routine).
CVSS 4.0MEDIUM 5.1· Local · No auth · No interaction · EPSS 0.00291 · Published 2026-07-13 · Partial fix CWE-121
Priority LOW 23
Use After Free vulnerability has been found in "io.c" program file of gawk (do_getline_redir() routine).
CVSS 4.0MEDIUM 5.1· Local · No auth · No interaction · EPSS 0.00213 · Published 2026-07-13 · Partial fix CWE-416
Priority LOW 21
Passing an effectively empty string to the `,ccs=` syntax extension of the mode argument in the `fopen` function in the GNU C Library version 2.45 or earlier may result in a heap buffer overflow when the mode string inpu…
CVSS 3.1MEDIUM 4.9· Local · No auth · No interaction · EPSS 0.00144 · Published 2026-08-27 · Partial fix · 2.45 CWE-787
Priority LOW 11
Integer overflow vulnerability has been found in "builtin.c" program file of gawk.
CVSS 4.0LOW 2.1· Local · No auth · No interaction · EPSS 0.00201 · Published 2026-07-13 · Partial fix CWE-190
Priority LOW 10
Calling wordexp with WRDE_APPEND in the GNU C Library version 2.0 to version 2.43 can cause the interface to return invalid memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.
CVSS 4.0LOW 2.1· Local · No auth · No interaction · EPSS 0.00107 · Published 2026-08-10 · Partial fix · 2.43 CWE-908