CVE-2026-1810 bolo-blog bolo-solo ZIP File BackupService.java unpackFilteredZip path traversal

Medium 5.3 Published 3 Feb 2026 Updated 23 Feb 2026

Remote attackers can exploit a path traversal vulnerability in the ZIP backup service to read or modify arbitrary files on the server.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-1810?

CVE-2026-1810 is a medium-severity path traversal vulnerability in bolo-blog bolo-solo, published on 3 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was detected in bolo-blog bolo-solo up to 2.6.4. The impacted element is the function unpackFilteredZip of the file src/main/java/org/b3log/solo/bolo/prop/BackupService.java of the component ZIP File Handler. Performing a manipulation of the argument File results in path traversal. The attack is possible to be carried out remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-22

Which versions are affected by CVE-2026-1810?

It affects 1 product.

Products include Adlered Bolo-Solo.

How do I fix CVE-2026-1810?

No fix has been published for CVE-2026-1810 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-1810 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1810 exists.

Sources

Also known as GHSA-8gmc-c3g8-vc4p.