What is CVE-2026-26895?

CVE-2026-26895 is a medium-severity vulnerability in Enhancesoft Osticket, classified under Observable Discrepancy. CVSS score: 5.3/10. Published 2026-04-02.

How severe is CVE-2026-26895?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Enhancesoft Osticket

CVE-2026-26895

User enumeration vulnerability in /pwreset.php in osTicket v1.18.2 allows remote attackers to enumerate valid usernames registered in the platform.

Published 2026-04-02 · last modified 2026-07-24.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (33.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Enhancesoft Osticket

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

References

osticket.com (Product)
csacyber.com/blog/osticket-timing-vulnerability-understanding-the-risk (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2026-26895?: CVE-2026-26895 is a medium-severity vulnerability in Enhancesoft Osticket, classified under Observable Discrepancy. CVSS score: 5.3/10. Published 2026-04-02.
How severe is CVE-2026-26895?: Medium severity. CVSS v3 base score is 5.3 out of 10.