PYSEC-2026-1865

Vulnerability from pysec - Published: 2026-07-07 14:34 - Updated: 2026-07-07 17:25
VLAI
Details

Impact

Due to a bug in Red's Core API, 3rd-party cogs using the @commands.can_manage_channel() command permission check without additional permission controls may authorize a user to run a command even when that user doesn't have permissions to manage a channel. None of the core commands or core cogs are affected. The maintainers of the project are not aware of any public 3rd-party cog utilizing this API at the time of writing this advisory.

The @commands.mod_or_can_manage_channel(), @commands.admin_or_can_manage_channel(), and @commands.guildowner_or_can_manage_channel() command permission checks are unaffected.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/AU:Y/R:U/RE:L

Patches

The problem was patched in PR #6398 and later released in version 3.5.10.

Workarounds

Any cog using the @commands.can_manage_channel() command permission check should be unloaded until an upgrade to a patched version can be performed.

References

https://github.com/Cog-Creators/Red-DiscordBot/pull/6398 https://github.com/Cog-Creators/Red-DiscordBot/releases/tag/3.5.10 https://pypi.org/project/Red-DiscordBot/3.5.10/

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Impacted products
Name purl
red-discordbot pkg:pypi/red-discordbot
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "red-discordbot",
        "purl": "pkg:pypi/red-discordbot"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.5.0"
            },
            {
              "fixed": "3.5.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.5.0",
        "3.5.1",
        "3.5.2",
        "3.5.3",
        "3.5.4",
        "3.5.5",
        "3.5.6",
        "3.5.7",
        "3.5.8",
        "3.5.9"
      ]
    }
  ],
  "aliases": [
    "CVE-2024-39905",
    "GHSA-5jq8-q6rj-9gq4"
  ],
  "details": "### Impact\n\nDue to a bug in Red\u0027s Core API, 3rd-party cogs using the [`@commands.can_manage_channel()`](https://docs.discord.red/en/stable/framework_checks.html#redbot.core.commands.can_manage_channel) command permission check without additional permission controls may authorize a user to run a command even when that user doesn\u0027t have permissions to manage a channel.\nNone of the core commands or core cogs are affected. The maintainers of the project are not aware of any _public_ 3rd-party cog utilizing this API at the time of writing this advisory.\n\nThe [`@commands.mod_or_can_manage_channel()`](https://docs.discord.red/en/stable/framework_checks.html#redbot.core.commands.mod_or_can_manage_channel), [`@commands.admin_or_can_manage_channel()`](https://docs.discord.red/en/stable/framework_checks.html#redbot.core.commands.admin_or_can_manage_channel), and [`@commands.guildowner_or_can_manage_channel()`](https://docs.discord.red/en/stable/framework_checks.html#redbot.core.commands.guildowner_or_can_manage_channel) command permission checks are unaffected.\n\nCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N\nCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/AU:Y/R:U/RE:L\n\n### Patches\n\nThe problem was patched in PR #6398 and later released in version [3.5.10](https://pypi.org/project/Red-DiscordBot/3.5.10/).\n\n### Workarounds\n\nAny cog using the [`@commands.can_manage_channel()`](https://docs.discord.red/en/stable/framework_checks.html#redbot.core.commands.can_manage_channel) command permission check should be unloaded until an upgrade to a patched version can be performed.\n\n### References\n\nhttps://github.com/Cog-Creators/Red-DiscordBot/pull/6398\nhttps://github.com/Cog-Creators/Red-DiscordBot/releases/tag/3.5.10\nhttps://pypi.org/project/Red-DiscordBot/3.5.10/\n\n",
  "id": "PYSEC-2026-1865",
  "modified": "2026-07-07T17:25:16.938936Z",
  "published": "2026-07-07T14:34:36.672478Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Cog-Creators/Red-DiscordBot/security/advisories/GHSA-5jq8-q6rj-9gq4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39905"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Cog-Creators/Red-DiscordBot/pull/6398"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Cog-Creators/Red-DiscordBot/commit/0b0b23b9717b40ed4f8715720b199417c8e89750"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Cog-Creators/Red-DiscordBot"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/red-discordbot"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-5jq8-q6rj-9gq4"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Red-DiscordBot vulnerable to Incorrect Authorization in commands API"
}



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Sightings

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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.