CVE-2026-89158: CWE-190 Integer Overflow or Wraparound in PCRE PCRE2
CVE-2026-89158 is an integer overflow vulnerability in PCRE2 versions before 10.48 on 32-bit platforms. The flaw occurs in the pcre2_compile_32 function, leading to an out-of-bounds write. This vulnerability has a medium severity rating and a CVSS score of 6.5.
AI Analysis
Technical Summary
PCRE2 before version 10.48 on 32-bit platforms contains an integer overflow vulnerability in the pcre2_compile_32 function. This overflow can cause an out-of-bounds write, potentially leading to integrity impacts. The CVSS 3.1 base score is 6.5, with network attack vector, high attack complexity, no privileges required, no user interaction, unchanged scope, no confidentiality impact, high integrity impact, and low availability impact.
Potential Impact
The vulnerability allows an attacker to cause an out-of-bounds write due to an integer overflow, which can impact the integrity of the affected system. There is no confidentiality or availability impact reported. Exploitation requires network access with high complexity and no privileges or user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Users should monitor vendor communications for updates and apply patches once available.
CVE-2026-89158: CWE-190 Integer Overflow or Wraparound in PCRE PCRE2
Description
CVE-2026-89158 is an integer overflow vulnerability in PCRE2 versions before 10.48 on 32-bit platforms. The flaw occurs in the pcre2_compile_32 function, leading to an out-of-bounds write. This vulnerability has a medium severity rating and a CVSS score of 6.5.
CVSS v3.1
Score 6.5medium
Affected software
PCRE
PCRE2
pkg:github/pcre2project/pcre2Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
PCRE2 before version 10.48 on 32-bit platforms contains an integer overflow vulnerability in the pcre2_compile_32 function. This overflow can cause an out-of-bounds write, potentially leading to integrity impacts. The CVSS 3.1 base score is 6.5, with network attack vector, high attack complexity, no privileges required, no user interaction, unchanged scope, no confidentiality impact, high integrity impact, and low availability impact.
Potential Impact
The vulnerability allows an attacker to cause an out-of-bounds write due to an integer overflow, which can impact the integrity of the affected system. There is no confidentiality or availability impact reported. Exploitation requires network access with high complexity and no privileges or user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Users should monitor vendor communications for updates and apply patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-09-11T04:07:21.613Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa380d491cc7f3848a3b520
Added to database: 09/11/2026, 04:17:24 UTC
Last enriched: 09/11/2026, 04:32:46 UTC
Last updated: 09/11/2026, 04:39:58 UTC
Views: 6
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