In PCRE2 before 10.48, pcre2_serialize_encode might disclose two bytes to an adversary, typically in a situation where the access available to the adversary is already unsafe.

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - 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 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 purpose, does have a size check). This outcome requires an attacker-controlled regular expression, or
    a recursive pattern in conjunction with a small heap limit (this can be set through the API).
    (CVE-2026-86145)

  - 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_compile_32 integer overflow and resultant out-of-
    bounds write. (CVE-2026-89158)

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

  - In PCRE2 before 10.48, pcre2_serialize_encode might disclose two bytes to an adversary, typically in a     situation where the access available to the adversary is already unsafe. (CVE-2026-89162)

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

ID	Name	Product	Family	Type	Severity
476419	Alpine: libpcre2-16, multiple pcre2 packages: security update to 10.46-r1	Tenable Cloud Security	Alpine Linux Local Security Checks	Local	high
476419	Alpine: libpcre2-16, multiple pcre2 packages: security update to 10.46-r1	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	Local	high
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
344744	Linux Distros Unpatched Vulnerability : CVE-2026-89162	Nessus	Misc.	Local	low

Detections

Analytics

CVE-2026-89162

low

Tenable Plugins

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high

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low