PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant out-of-bounds write.

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1789567071 advisory.

  - PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide     invalid UTF data. (CVE-2026-89156)

  - 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. (CVE-2026-89157)

  - PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant out-of-     bounds write. (CVE-2026-89158)

  - 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. (CVE-2026-89161)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1789573344 advisory.

  - PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide     invalid UTF data. (CVE-2026-89156)

  - 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. (CVE-2026-89157)

  - PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant out-of-     bounds write. (CVE-2026-89158)

  - 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. (CVE-2026-89161)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1789573344 advisory.

  - PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide     invalid UTF data. (CVE-2026-89156)

  - 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. (CVE-2026-89157)

  - PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant out-of-     bounds write. (CVE-2026-89158)

  - 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. (CVE-2026-89161)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2026:1789483647 advisory.

  - PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant out-of-     bounds write. (CVE-2026-89158)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21938-1 advisory.

    - CVE-2026-86145: missing size checks in `pcre2_dfa_match` code can lead to an out-of-bounds write     (bsc#1279893).
    - CVE-2026-89156: out-of-bounds read via invalid UTF data during JIT fallback (bsc#1280054).
    - CVE-2026-89157: out-of-bounds write via large pattern input (bsc#1280053).
    - CVE-2026-89158: out-of-bounds write due to integer overflow in `pcre2_compile_32` for 32-bit platforms     (bsc#1280052).
    - CVE-2026-89160: out-of-bounds read during the `PCRE2_MATCH_INVALID_UTF` matching of an invalid UTF     subject       (bsc#1280051).
    - CVE-2026-89161: incorrect free operation due to mishandling of a previously copied subject in     `pcre2_jit_match`       (bsc#1280050).
    - CVE-2026-89162: information disclosure via `pcre2_serialize_encode` (bsc#1280049).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-98f3f016c4 advisory.

    Update to pcre-10.48


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-e9c6062c07 advisory.

    Update to pcre-10.48


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-68e2c40a81 advisory.

    Update to pcre-10.48


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4241-1 advisory.

    - CVE-2026-86145: missing size checks in `pcre2_dfa_match` code can lead to an out-of-bounds write     (bsc#1279893).
    - CVE-2026-89156: out-of-bounds read via invalid UTF data during JIT fallback (bsc#1280054).
    - CVE-2026-89157: out-of-bounds write via large pattern input (bsc#1280053).
    - CVE-2026-89158: out-of-bounds write due to integer overflow in `pcre2_compile_32` for 32-bit platforms     (bsc#1280052).
    - CVE-2026-89160: out-of-bounds read during the `PCRE2_MATCH_INVALID_UTF` matching of an invalid UTF     subject       (bsc#1280051).
    - CVE-2026-89161: incorrect free operation due to mishandling of a previously copied subject in     `pcre2_jit_match`       (bsc#1280050).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4201-1 advisory.

    - CVE-2026-86145: missing size checks in `pcre2_dfa_match` code can lead to an out-of-bounds write     (bsc#1279893).
    - CVE-2026-89156: out-of-bounds read via invalid UTF data during JIT fallback (bsc#1280054).
    - CVE-2026-89157: out-of-bounds write via large pattern input (bsc#1280053).
    - CVE-2026-89158: out-of-bounds write due to integer overflow in `pcre2_compile_32` for 32-bit platforms     (bsc#1280052).
    - CVE-2026-89160: out-of-bounds read during the `PCRE2_MATCH_INVALID_UTF` matching of an invalid UTF     subject       (bsc#1280051).
    - CVE-2026-89161: incorrect free operation due to mishandling of a previously copied subject in     `pcre2_jit_match`       (bsc#1280050).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant out-of-     bounds write. (CVE-2026-89158)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
361277	AlmaLinux 9.2 [TuxCare] Security Update: pcre2 / pcre2-devel / pcre2-static / pcre2-syntax / pcre2-tools / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1789567071)	Nessus	Alma Linux Local Security Checks	Local	high
352908	AlmaLinux 9.6 [TuxCare] Security Update: pcre2 / pcre2-devel / pcre2-static / pcre2-syntax / pcre2-tools / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1789573344)	Nessus	Alma Linux Local Security Checks	Local	high
352869	Rocky Linux 9.6 [TuxCare] Security Update: pcre2 / pcre2-devel / pcre2-static / pcre2-syntax / pcre2-tools / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1789573344)	Nessus	Rocky Linux Local Security Checks	Local	high
352482	CentOS Linux 7 [TuxCare] Security Update: pcre2 / pcre2-devel / pcre2-static / pcre2-tools / pcre2-utf16 / etc (CENTOS7:CLSA-2026:1789483647)	Nessus	CentOS Local Security Checks	Local	medium
350765	openSUSE 16: libpcre2-16-0 / libpcre2-32-0 / libpcre2-8-0 / libpcre2-posix3 / etc (openSUSE-SU-2026:21938-1)	Nessus	SuSE Local Security Checks	Local	high
349623	Fedora 43 : mingw-pcre2 (2026-98f3f016c4)	Nessus	Fedora Local Security Checks	Local	high
349621	Fedora 44 : mingw-pcre2 (2026-e9c6062c07)	Nessus	Fedora Local Security Checks	Local	high
349563	Fedora 45 : mingw-pcre2 (2026-68e2c40a81)	Nessus	Fedora Local Security Checks	Local	high
347895	SUSE SLED15: libpcre2-16-0 / libpcre2-32-0 / libpcre2-8-0 / libpcre2-8-0-32bit / etc (SUSE-SU-2026:4241-1)	Nessus	SuSE Local Security Checks	Local	high
346792	SUSE SLES12: libpcre2-16-0 / libpcre2-32-0 / libpcre2-8-0 / libpcre2-posix2 / etc (SUSE-SU-2026:4201-1)	Nessus	SuSE Local Security Checks	Local	high
344749	Linux Distros Unpatched Vulnerability : CVE-2026-89158	Nessus	Misc.	Local	medium

Detections

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CVE-2026-89158

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