PCRE PCRE2 up to 10.47 pcre2_match out-of-bounds

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in PCRE PCRE2 up to 10.47. Affected by this vulnerability is the function pcre2_match. The manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2026-89160. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in PCRE PCRE2 up to 10.47. This issue affects the function pcre2_match. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability. The summary by CVE is:

PCRE2 before 10.48 has a pcre2_match out-of-bounds read during the PCRE2_MATCH_INVALID_UTF matching of an invalid UTF subject.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-89160 since 09/11/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 366075 (Rocky Linux 10.2 [CIQ] Security Update: pcre2 / pcre2-debuginfo / pcre2-debugsource / pcre2-devel / etc Multiple Vulnerabilities (crlsa-2026_81522)), 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 (366075) and CERT Bund (WID-SEC-2026-3334). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

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

Productinfo

Type

• Programming Tool Software

Vendor

• PCRE

Name

• PCRE2

Version

• 10.0
• 10.1
• 10.2
• 10.3
• 10.4
• 10.5
• 10.6
• 10.7
• 10.8
• 10.9
• 10.10
• 10.11
• 10.12
• 10.13
• 10.14
• 10.15
• 10.16
• 10.17
• 10.18
• 10.19
• 10.20
• 10.21
• 10.22
• 10.23
• 10.24
• 10.25
• 10.26
• 10.27
• 10.28
• 10.29
• 10.30
• 10.31
• 10.32
• 10.33
• 10.34
• 10.35
• 10.36
• 10.37
• 10.38
• 10.39
• 10.40
• 10.41
• 10.42
• 10.43
• 10.44
• 10.45
• 10.46
• 10.47

License

• open-source

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔒

CNA Base Score: 3.7
CNA Vector (MITRE): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 366075
Nessus Name: Rocky Linux 10.2 [CIQ] Security Update: pcre2 / pcre2-debuginfo / pcre2-debugsource / pcre2-devel / etc Multiple Vulnerabilities (crlsa-2026_81522)

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-2026-89160 (🔒)
GCVE (CVE): GCVE-0-2026-89160
GCVE (VulDB): GCVE-100-402347
CERT Bund: WID-SEC-2026-3334 - PCRE2 (Perl Compatible Regular Expressions): Mehrere Schwachstellen

Entryinfo

Created: 09/11/2026 06:37
Updated: 10/19/2026 19:30
Changes: 09/11/2026 06:37 (65), 09/15/2026 06:54 (7), 09/19/2026 07:36 (11), 10/15/2026 19:37 (2), 10/19/2026 19:30 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

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