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Vulnerability · Published Jan 30, 2026 · Assigned by VulDB

CVE-2026-1691bolo-solo SnakeYAML BackupService.java importMarkdownsSync deserialization

Medium 6.3

In plain English

A medium-severity unsafe deserialization in bolo-solo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)0.6%top 52.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
n/a bolo-solo 2.6.02.6.12.6.22.6.32.6.4

Weakness: CWE-502, CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C

References