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01 Record

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.

LowPUBLISHEDCNA: mitre
CNA base score2.9 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
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02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.29% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 21.7% of scored records. A rank, not a probability.
NVD base score
5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-09-16.
Red Hat severity
Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-09-11 04:03Z1 MO AGO
Last updated
2026-09-14 18:18Z1 MO AGO
Reserved
2026-09-11
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Low (CVSS 2.9)
CNA CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
Data version
5.2
Document digest
d7b0a80b36a359f512fadbe2e98c03fae39c88d6f0a7dace8ce357c3bb6db5be

05 Affected products

VendorProductVersionsPlatforms
PCREPCRE210.34 to < 10.48—

06 References

07 Fixed in

AlmaLinux 9

  • pcre2
    Fixed in 10.40-7.el9_8
  • pcre2-devel
    Fixed in 10.40-7.el9_8
  • pcre2-syntax
    Fixed in 10.40-7.el9_8
  • pcre2-tools
    Fixed in 10.40-7.el9_8
  • pcre2-utf16
    Fixed in 10.40-7.el9_8
  • pcre2-utf32
    Fixed in 10.40-7.el9_8

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 10

  • pcre2
    Fixed in 10.44-1.5.el10_2
  • pcre2-devel
    Fixed in 10.44-1.5.el10_2
  • pcre2-static
    Fixed in 10.44-1.5.el10_2
  • pcre2-syntax
    Fixed in 10.44-1.5.el10_2
  • pcre2-tools
    Fixed in 10.44-1.5.el10_2
  • pcre2-utf16
    Fixed in 10.44-1.5.el10_2
  • pcre2-utf32
    Fixed in 10.44-1.5.el10_2

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • pcre2
    Fixed in 10.40-7.el9_8
  • pcre2-devel
    Fixed in 10.40-7.el9_8
  • pcre2-syntax
    Fixed in 10.40-7.el9_8
  • pcre2-tools
    Fixed in 10.40-7.el9_8
  • pcre2-utf16
    Fixed in 10.40-7.el9_8
  • pcre2-utf32
    Fixed in 10.40-7.el9_8

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 10

  • pcre2
    Fixed in 10.44-1.5.el10_2
  • pcre2-devel
    Fixed in 10.44-1.5.el10_2
  • pcre2-static
    Fixed in 10.44-1.5.el10_2
  • pcre2-syntax
    Fixed in 10.44-1.5.el10_2
  • pcre2-tools
    Fixed in 10.44-1.5.el10_2
  • pcre2-utf16
    Fixed in 10.44-1.5.el10_2
  • pcre2-utf32
    Fixed in 10.44-1.5.el10_2

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • pcre2
    Fixed in 10.42-1+deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • pcre2
    Fixed in 10.46-1~deb13u2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • pcre2
    Fixed in 10.48-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • pcre2
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • pcre2
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • pcre2
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • pcre2
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • pcre2
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.