CVE-2026-14966 Symlink guard bypass in unarchive module allows planting symlinks during extraction
Attackers can plant symlinks during archive extraction in BBOT if using legacy p7zip, bypassing security guards.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-14966?
CVE-2026-14966 is a low-severity path traversal vulnerability in Black Lantern Security BBOT, published on 8 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
BBOT's unarchive module rejects archives containing symlink entries before extraction, but for zip and 7z archives it failed to detect symlinks whose listing carries a DOS-attribute prefix before the unix mode, as produced by legacy versions of p7zip. Such an archive, downloaded and extracted during a scan (for example via filedownload), bypassed the guard and caused an attacker-controlled symlink to be written into the extraction directory. The effect is limited to planting the symlink (its target is not written through), and only hosts using such a legacy p7zip build are affected; current mainline 7-Zip is not.
Weakness: CWE-59
Which versions are affected by CVE-2026-14966?
3 open source packages ship an affected version, including bbot. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
bbot PyPI | From 2.3.1 | 3.0.0 |
bbot PyPI | From 2.3.1 | 3.0.0 |
bbot PyPI | From 2.3.1 | 3.0.0 |
Products include Blacklanternsecurity Bbot.
How do I fix CVE-2026-14966?
Upgrade bbot to 3.0.0 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-14966 being exploited?
There is no known exploitation of CVE-2026-14966 in the wild and no public exploit code.
Other vulnerabilities in Black Lantern Security BBOT
Sources
Also known as GHSA-xpf3-p7gm-7756, PYSEC-2026-3719.