# 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.

- **Severity:** Low 3.1 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N`)
- **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:** Yes
- **Published:** 8 Jul 2026
- **Updated:** 8 Jul 2026
- **Also known as:** GHSA-xpf3-p7gm-7756, PYSEC-2026-3719

## 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 (Improper Link Resolution Before File Access)

## Which versions are affected by CVE-2026-14966?

3 open source packages ship an affected version, including bbot. It affects 1 product.


| Package | Ecosystem | 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: Blacklanternsecurity Bbot.

## How do I fix CVE-2026-14966?

Upgrade bbot to 3.0.0 or later.

## 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

- [CVE-2026-14967](https://insights.sbomify.com/CVE-2026-14967/): Path traversal in github_workflows allows writing artifacts outside output directory (low 3.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-14966 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2026-14966 in the wild and no public exploit code.

Affected packages and fixed versions:
- bbot (PyPI): affected from 2.3.1; fixed in 3.0.0
- bbot (PyPI): affected from 2.3.1; fixed in 3.0.0
- bbot (PyPI): affected from 2.3.1; fixed in 3.0.0

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-14966/ (Markdown: https://insights.sbomify.com/CVE-2026-14966/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-14966
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-14966
- OSV: https://osv.dev/vulnerability/CVE-2026-14966

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-14966/
Summaries are generated and may contain mistakes; the official description above is the record.