Vulnerability in Pcre Pcre2
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (4.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Pcre Pcre2 — versions 10.48
Weakness classification (CWE)
References
- github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48 (Release Notes)
- github.com/PCRE2Project/pcre2/security/advisories/GHSA-q7rw-r7qq-2hx6 (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-89162?
- CVE-2026-89162 is a low-severity vulnerability in Pcre Pcre2, classified under Incorrect Resource Transfer Between Spheres. CVSS score: 2.9/10. Published 2026-09-11.
- How severe is CVE-2026-89162?
- Low severity. CVSS v3 base score is 2.9 out of 10.