PYSEC-2026-285

Vulnerability from pysec - Published: 2026-06-29 11:50 - Updated: 2026-06-29 12:05
VLAI
Details

Summary

AstrBot uses a hard-coded JWT signing key, allowing attackers to execute arbitrary commands by installing a malicious plugin.

Details

AstrBot uses a hard-coded JWT signing key, which allows attackers to bypass the authentication mechanism. Once bypassed, the attacker can install a Python plugin that will be imported here, enabling arbitrary command execution on the target host.

Impact

All publicly accessible AstrBot instances are vulnerable.

For more information, please see: CVE-2025-55449-AstrBot-RCE

Patch

This vulnerability was first reported on 2025-06-21 and was patched on the same day (2025-06-21).

The vulnerability was publicly disclosed on 2025-11-14. Prior to public disclosure, monitoring from AstrBot Cloud indicated that fewer than 2% of deployed instances were still running the affected version. Therefore, this disclosure is not expected to have a significant impact on existing active instances.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impacted products
Name purl
astrbot
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "astrbot"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.18"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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",
        "3.5.6",
        "3.5.7",
        "3.5.8",
        "3.5.9"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-55449",
    "GHSA-4m32-cjv7-f425"
  ],
  "details": "### Summary\nAstrBot uses a hard-coded JWT signing key, allowing attackers to execute arbitrary commands by installing a malicious plugin.\n\n### Details\n \nAstrBot uses a [hard-coded JWT signing key](https://github.com/AstrBotDevs/AstrBot/blob/v3.5.16/astrbot/core/__init__.py), which allows attackers to bypass the authentication mechanism. Once bypassed, the attacker can install a Python plugin that will be imported [here](https://github.com/AstrBotDevs/AstrBot/blob/master/astrbot/dashboard/routes/plugin.py), enabling arbitrary command execution on the target host.\n\n### Impact\n\nAll publicly accessible AstrBot instances are vulnerable.\n\nFor more information, please see: [CVE-2025-55449-AstrBot-RCE](https://github.com/Marven11/CVE-2025-55449-AstrBot-RCE)\n \n### Patch\n\nThis vulnerability was first reported on **2025-06-21** and was patched on the **same day** (2025-06-21).\n\nThe vulnerability was publicly disclosed on **2025-11-14**. Prior to public disclosure, monitoring from AstrBot Cloud indicated that fewer than 2% of deployed instances were still running the affected version. Therefore, this disclosure is not expected to have a significant impact on existing active instances.",
  "id": "PYSEC-2026-285",
  "modified": "2026-06-29T12:05:20.658458Z",
  "published": "2026-06-29T11:50:36.550940Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/AstrBotDevs/AstrBot/security/advisories/GHSA-4m32-cjv7-f425"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55449"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AstrBotDevs/AstrBot/commit/d03e9fb90a0921a1bd10cf480bdacc9aaa246472"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/AstrBotDevs/AstrBot"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AstrBotDevs/AstrBot/releases/tag/v3.5.18"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Marven11/CVE-2025-55449-AstrBot-RCE"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/astrbot"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-4m32-cjv7-f425"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "AstrBot is vulnerable to RCE with hard-coded JWT signing keys"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.