PCRE PCRE2 up to 10.47 pcre2_compile_32 integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.45

Summaryinfo

A vulnerability classified as critical was found in PCRE PCRE2 up to 10.47. Affected is the function pcre2_compile_32. Executing a manipulation can lead to integer overflow. This vulnerability is handled as CVE-2026-89158. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in PCRE PCRE2 up to 10.47. This vulnerability affects the function pcre2_compile_32. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect integrity, and availability. CVE summarizes:

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

The advisory is available at github.com. This vulnerability was named CVE-2026-89158 since 09/11/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 367266 (MiracleLinux 8 : pcre2-10.32-4.el8_10 (AXSA:2026-2088:03)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 10.48 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (367266) and CERT Bund (WID-SEC-2026-3334). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Debian Linux
  • Red Hat Enterprise Linux
  • RESF Rocky Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source PCRE (Perl Compatible Regular Expressions)

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔒

CNA Base Score: 6.5
CNA Vector (MITRE): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 367266
Nessus Name: MiracleLinux 8 : pcre2-10.32-4.el8_10 (AXSA:2026-2088:03)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: PCRE2 10.48

Timelineinfo

09/11/2026 Advisory disclosed
09/11/2026 +0 days CVE reserved
09/11/2026 +0 days VulDB entry created
10/19/2026 +38 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-89158 (🔒)
GCVE (CVE): GCVE-0-2026-89158
GCVE (VulDB): GCVE-100-402346
CERT Bund: WID-SEC-2026-3334 - PCRE2 (Perl Compatible Regular Expressions): Mehrere Schwachstellen

Entryinfo

Created: 09/11/2026 06:36
Updated: 10/19/2026 18:20
Changes: 09/11/2026 06:36 (65), 09/15/2026 06:54 (7), 09/19/2026 07:36 (10), 10/19/2026 18:03 (2), 10/19/2026 18:20 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

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