Vulnerability · 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 Sep 11, 2026 · catalog updated Oct 21, 2026 · In PCRE2 before 10.48,
Check if you run it
No confirmed exploitation is on record for CVE-2026-89162. EPSS is 0.16%. Act only if a listed version of In PCRE2 before 10.48, is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (In PCRE2 before 10.48,).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Low3.3
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.16%
- Remediation
- Advisory link
- Affected products
- Alpine:v3.22 pcre2 · Alpine:v3.23 pcre2 · Alpine:v3.24 pcre2
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- Alpine:v3.22 pcre210.45 → 10.46-r1
- Alpine:v3.23 pcre210.45 → 10.48-r0
- Alpine:v3.24 pcre210.45 → 10.48-r0
How to fix CVE-2026-89162
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-89162. EPSS is 0.16%. Act only if a listed version of In PCRE2 before 10.48, is installed.
Which versions are affected?
Compare what you have installed with 10.45 → 10.46-r1, 10.45 → 10.48-r0. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.16%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Sep 11, 2026 · OpenSSF OSV / OSV Scanner
Detected
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.
Oct 21, 2026 · OpenSSF OSV / OSV Scanner
Fix available
pcre2 fixed in 10.46-r1; pcre2 fixed in 10.48-r0; pcre2 fixed in 10.48-r0
Oct 21, 2026 · OpenSSF OSV / OSV Scanner
Fix available
pcre2 fixed in 10.46-r1
Oct 21, 2026 · OpenSSF OSV / OSV Scanner
Fix available
pcre2 fixed in 10.48-r0
Oct 21, 2026 · OpenSSF OSV / OSV Scanner
Updated
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.
Sources
- BSI CERT-BundGovernment advisoryCVE-2026-89162
PCRE2 (Perl Compatible Regular Expressions): Mehrere Schwachstellen
wid.cert-bund.de - CVE.orgVulnerability recordCVE-2026-89162
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-89162
30-day exploitation probability 0.16%
first.org - OpenSSF OSV / OSV ScannerPackage advisoryALPINE-CVE-2026-89162osv.dev
- Trivy Vulnerability DBPackage advisoryALPINE-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.
osv.dev
References
Freshness
Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.