id: PYSEC-2026-1197
published: "2026-07-07T16:03:09.964955Z"
modified: "2026-07-07T17:23:47.702390Z"
aliases:
- CVE-2025-57697
- GHSA-vm2f-46xc-5jc3
summary: AstrBot has an arbitrary file read vulnerability in function _encode_image_bs64
details: AstrBot Project v3.5.22 has an arbitrary file read vulnerability in function _encode_image_bs64. Since the _encode_image_bs64 function defined in entities.py opens the image specified by the user in the request body and returns the image content as a base64-encoded string without checking the legitimacy of the image path, attackers can construct a series of malicious URLs to read any specified file, resulting in sensitive data leakage.
affected:
- package:
    name: astrbot
    ecosystem: PyPI
    purl: pkg:pypi/astrbot
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - last_affected: 3.5.22
  versions:
  - 3.4.39
  - 3.5.10
  - 3.5.11
  - 3.5.12
  - 3.5.13
  - 3.5.14
  - 3.5.15
  - 3.5.17
  - 3.5.18
  - 3.5.19
  - 3.5.20
  - 3.5.21
  - 3.5.22
  - 3.5.6
  - 3.5.7
  - 3.5.8
  - 3.5.9
references:
- type: ADVISORY
  url: https://nvd.nist.gov/vuln/detail/CVE-2025-57697
- type: PACKAGE
  url: https://github.com/AstrBotDevs/AstrBot
- type: WEB
  url: https://github.com/DYX217/vulnerability-explore/blob/main/1/README.md
- type: PACKAGE
  url: https://pypi.org/project/astrbot
- type: ADVISORY
  url: https://github.com/advisories/GHSA-vm2f-46xc-5jc3
severity:
- type: CVSS_V4
  score: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P