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CVE-2026-109965— Serena before 2.0.0 Symlink Following in File Tools Allows Access Outside Project Root

Quick assessment

Affected
oraios serena
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.

Serena 2.0.0 版本之前存在一个不正确的链接解析漏洞，攻击者可以通过在仓库内提交符号链接（symlink），访问项目根目录之外的文件。 方法仅对路径进行词法层面的规范化，而未实际解析符号链接，因此诸如 和 等文件操作工具可能会读取或覆盖敏感文件，例如 SSH 密钥或云凭证。

CVSS 7.1 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
oraios serena < 2.0.0 affected
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I. Basic Information for CVE-2026-109965

Vulnerability Information
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Vulnerability Title
Serena before 2.0.0 Symlink Following in File Tools Allows Access Outside Project Root
Source: CVE Program / CVE List V5
Vulnerability Description
Serena before 2.0.0 contains an improper link resolution vulnerability that allows attackers to access files outside the project root by committing symlinks inside a repository. Project.is_path_in_project() normalizes paths lexically without resolving symlinks, so file tools like read_file and create_text_file can read or overwrite files such as SSH keys or cloud credentials.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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

Affected Products

Vendor Product Affected Versions CPE Subscribe
oraios serena 0 ~ 2.0.0 -

II. Public POCs for CVE-2026-109965

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-109965

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Patches & Fixes for CVE-2026-109965 (1)

Vendor Advisories for CVE-2026-109965 (1)

Proof of Concept for CVE-2026-109965 (2)

Other References for CVE-2026-109965 (2)

IV. Related Vulnerabilities

Same product: serena
Same vendor: oraios
Same weakness: CWE-59

V. Comments for CVE-2026-109965

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