How severe is CVE-2026-89162?

CVE-2026-89162 has a CVSS 3.x base score of 2.9, rated low severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-89162 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-89162?

CVE-2026-89162 primarily affects Pcre Pcre2. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-89162?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-89162 published?

CVE-2026-89162 was published on 2026-09-11 and last updated on 2026-09-16.

CVE-2026-89162

CVE-2026-89162 is a low-severity vulnerability in Pcre Pcre2 with a CVSS 3.x base score of 2.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-669.

Key facts

Severity: Low (CVSS 3.x base score 2.9)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-669
Affected product: Pcre Pcre2
Published: 2026-09-11
Last modified: 2026-09-16

Description

In PCRE2 before 10.48, pcre2_serialize_encode might disclose two bytes to an adversary, typically in a situation where the access available to the adversary is already unsafe.

Frequently asked questions

What is CVE-2026-89162?: In PCRE2 before 10.48, pcre2_serialize_encode might disclose two bytes to an adversary, typically in a situation where the access available to the adversary is already unsafe.
How severe is CVE-2026-89162?: CVE-2026-89162 has a CVSS 3.x base score of 2.9, rated low severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-89162 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-89162?: CVE-2026-89162 primarily affects Pcre Pcre2. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-89162?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-89162 published?: CVE-2026-89162 was published on 2026-09-11 and last updated on 2026-09-16.

References

Affected products (2)

cpe:2.3:a:pcre:pcre2:*:*:*:*:*:*:*:*
cpe:2.3:a:pcre:pcre2:10.48:rc1:*:*:*:*:*:*

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