What is CVE-2026-34527?

CVE-2026-34527 is a medium-severity vulnerability in Sandboxie-plus Sandboxie, classified under Use of Weak Hash. CVSS score: 5.3/10. Published 2026-05-05.

How severe is CVE-2026-34527?

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

Vulnerability in Sandboxie-plus Sandboxie

CVE-2026-34527

Sandboxie-Plus is an open source sandbox-based isolation software for Windows. In versions 1.17.2 and earlier, SbieIniServer::HashPassword converts a SHA-1 digest to hexadecimal incorrectly. The high nibble of each byte is shifted right by…

EPSS: 0.000 (1.7th percentile) — read the EPSS interpretation.

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.

Affected products

Sandboxie-plus Sandboxie — versions < 1.17.3

Weakness classification (CWE)

CWE-328 — Use of Weak Hash

References

https://github.com/sandboxie-plus/Sandboxie/security/advisories/GHSA-w37h-qm9p-h4x2 (x_refsource_CONFIRM, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-34527?: CVE-2026-34527 is a medium-severity vulnerability in Sandboxie-plus Sandboxie, classified under Use of Weak Hash. CVSS score: 5.3/10. Published 2026-05-05.
How severe is CVE-2026-34527?: Medium severity. CVSS v3 base score is 5.3 out of 10.