CVE-2026-1691CWE-20CWE-502

bolo-solo SnakeYAML BackupService.java importMarkdownsSync deserialization

Medium · published January 30, 2026

CVSS v4.0
5.3
EPSS
1%
Percentile
46.6
In the wild
Unconfirmed
What it is

A vulnerability has been found in bolo-solo up to 2.6.4. This impacts the function importMarkdownsSync of the file src/main/java/org/b3log/solo/bolo/prop/BackupService.java of the component SnakeYAML. Such manipulation leads to deserialization. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00574 · 46.6th percentile
Weaknesses
CWE-20 · Improper Input Validation; CWE-502 · Deserialization of Untrusted Data
Published
2026-01-30T17:02Z
EPSS history
Timeline
  • 30 JAN 17:02Z
    bolo-solo SnakeYAML BackupService.java importMarkdownsSync deserialization
    cvelistv5