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RHSA-2026:81532
No affected components available
Red Hat Security Advisory: pcre2 security update
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The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the integrity of the data. There is a low impact on the availability of the system.
Exploitation activity has been observed. Apply available patches or mitigations urgently.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
- CVE-2026-103111
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.
Upstream, EPSS 0.21% - CVE-2026-89161
In PCRE2 before 10.48, pcre2_jit_match mishandles a previously copied subject being passed in as a context. An incorrect free operation can occur.
Upstream, EPSS 0.13% - EUVD-2026-75945Upstream
- EUVD-2026-75943Upstream
- EUVD-2026-71836Upstream
- EUVD-2026-75944Upstream
- CVE-2026-89156
PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide invalid UTF data.
Upstream, EPSS 0.29% - CVE-2026-89158
PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant out-of-bounds write.
Upstream, EPSS 0.25% - EUVD-2026-75942Upstream
- CVE-2026-89160
PCRE2 before 10.48 has a pcre2_match out-of-bounds read during the PCRE2_MATCH_INVALID_UTF matching of an invalid UTF subject.
Upstream, EPSS 0.27% - CVE-2026-89157
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.
Upstream, EPSS 0.28% - EUVD-2026-89608Upstream
- EUVD-2026-75946Upstream
- CVE-2026-86145Upstream
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