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01 Record

CVE-2026-89158

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

MediumPUBLISHEDCNA: mitre
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
View raw JSON

02 Description

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

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
0.24% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 15.8% of scored records. A rank, not a probability.
NVD base score
6.5 (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:H/A:L
NVD analysis status
Analyzed. NVD last modified this record on 2026-09-16.
Red Hat severity
Moderate. 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 04:07Z1 MO AGO
Last updated
2026-09-11 14:09Z1 MO AGO
Reserved
2026-09-11
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
Weaknesses
  • CWE-190Integer Overflow or WraparoundBase
  • CWE-787Out-of-bounds WriteBase
Data version
5.2
Document digest
a45f6eea972957448accd5a1c02d1a0fdef1f42046cdd443dc94e8650df29f1c

05 Affected products

VendorProductVersionsPlatforms
PCREPCRE20 to < 10.48—

06 References

07 Fixed in

AlmaLinux 8

  • pcre2
    Fixed in 10.32-4.el8_10
  • pcre2-devel
    Fixed in 10.32-4.el8_10
  • pcre2-tools
    Fixed in 10.32-4.el8_10
  • pcre2-utf16
    Fixed in 10.32-4.el8_10
  • pcre2-utf32
    Fixed in 10.32-4.el8_10

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

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 8

  • pcre2
    Fixed in 10.32-4.el8_10
  • pcre2-devel
    Fixed in 10.32-4.el8_10
  • pcre2-tools
    Fixed in 10.32-4.el8_10
  • pcre2-utf16
    Fixed in 10.32-4.el8_10
  • pcre2-utf32
    Fixed in 10.32-4.el8_10

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 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 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 16.04 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 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.

Ubuntu Pro 18.04 LTS

  • pcre2
    No fix yet

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

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.