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CVE-2026-14966— Symlink guard bypass in unarchive module allows planting symlinks during extraction

Quick assessment

Affected
Black Lantern Security BBOT
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Black Lantern Security BBOT是Black Lantern Security公司开源的一个递归互联网扫描器。 Black Lantern Security BBOT 2.8.6及之前版本存在后置链接漏洞，该漏洞源于解压模块未能检测带有DOS属性前缀的符号链接项，可能导致在提取目录中写入攻击者控制的符号链接。

CVSS 3.1 · Low EPSS 0.38% · P30

Possible ATT&CK Techniques 1 AI

T1564.004 · NTFS File Attributes

Affected Version Matrix 1

VendorProduct Version RangeStatus
Black Lantern Security BBOT 2.3.1≤ 2.8.6 affected
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I. Basic Information for CVE-2026-14966

Vulnerability Information
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Vulnerability Title
Symlink guard bypass in unarchive module allows planting symlinks during extraction
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
Black Lantern Security BBOT 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Black Lantern Security BBOT是Black Lantern Security公司开源的一个递归互联网扫描器。 Black Lantern Security BBOT 2.8.6及之前版本存在后置链接漏洞，该漏洞源于解压模块未能检测带有DOS属性前缀的符号链接项，可能导致在提取目录中写入攻击者控制的符号链接。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Black Lantern Security BBOT 2.3.1 ~ 2.8.6 -

II. Public POCs for CVE-2026-14966

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III. Intelligence Information for CVE-2026-14966

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Patches & Fixes for CVE-2026-14966 (1)

IV. Related Vulnerabilities

Same product: BBOT
Same vendor: Black Lantern Security
Same weakness: CWE-59

V. Comments for CVE-2026-14966

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