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CVE-2026-89158

Quick assessment

Affected
PCRE PCRE2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PCRE2是pcre团队开源的一个提供正则表达式解析与模式匹配能力的软件库。 PCRE2 10.48之前版本存在数字错误漏洞，该漏洞源于32位平台上的pcre2_compile_32整数溢出，导致越界写入。

CVSS 6.5 · Medium EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 1

VendorProduct Version RangeStatus
PCRE PCRE2 < 10.48 affected
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I. Basic Information for CVE-2026-89158

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant out-of-bounds write.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
PCRE2 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PCRE2是pcre团队开源的一个提供正则表达式解析与模式匹配能力的软件库。 PCRE2 10.48之前版本存在数字错误漏洞，该漏洞源于32位平台上的pcre2_compile_32整数溢出，导致越界写入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
PCRE PCRE2 0 ~ 10.48 -

II. Public POCs for CVE-2026-89158

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III. Intelligence Information for CVE-2026-89158

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Vendor Advisories for CVE-2026-89158 (1)

Vendor Pages for CVE-2026-89158 (1)

Same Patch Batch · PCRE · 2026-09-11 · 6 CVEs total

CVE-2026-89161 7.4 HIGH PCRE2 资源管理错误漏洞
CVE-2026-89157 5.7 MEDIUM PCRE2 数字错误漏洞
CVE-2026-89160 3.7 LOW PCRE2 缓冲区错误漏洞
CVE-2026-89156 2.9 LOW PCRE2 缓冲区错误漏洞
CVE-2026-89162 2.9 LOW PCRE2 权限许可和访问控制问题漏洞

IV. Related Vulnerabilities

Same product: PCRE2
Same vendor: PCRE
Same weakness: CWE-190

V. Comments for CVE-2026-89158

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