{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.50.4"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/cosmos/cosmos-sdk"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.50.0"
            },
            {
              "fixed": "0.50.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.47.9"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/cosmos/cosmos-sdk"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.47.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-372"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-02-27T21:55:52Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "## ASA-2024-005: Potential slashing evasion during re-delegation\n\n**Component**: Cosmos SDK\n**Criticality**: Low\n**Affected Versions**: Cosmos SDK versions \u003c= 0.50.4; \u003c= 0.47.9\n**Affected Users**: Chain developers, Validator and Node operators\n**Impact**: Slashing Evasion\n\n## Summary\n\nAn issue was identified in the slashing mechanism that may allow for the evasion of slashing penalties during a slashing event. If a delegation contributed to byzantine behavior of a validator, and the validator has not yet been slashed, it may be possible for that delegation to evade a pending slashing penalty through re-delegation behavior. Additional validation logic was added to restrict this behavior.\n\n## Next Steps for Impacted Parties\n\nIf you are a chain developer on an affected version of the Cosmos SDK, it is advised to update to the latest available version of the Cosmos SDK for your project.  Once a patched version is available, it is recommended that network operators upgrade.\n\nA Github Security Advisory for this issue is available in the Cosmos-SDK [repository](https://github.com/cosmos/cosmos-sdk/security/advisories/GHSA-86h5-xcpx-cfqc). For more information about Cosmos SDK, see https://docs.cosmos.network/.\n\nThis issue was found by cat shark (Khanh) who reported it to the Cosmos Bug Bounty Program on HackerOne on December 6, 2023. If you believe you have found a bug in the Interchain Stack or would like to contribute to the program by reporting a bug, please see https://hackerone.com/cosmos.\n",
  "id": "GHSA-86h5-xcpx-cfqc",
  "modified": "2024-11-04T17:14:28Z",
  "published": "2024-02-27T21:55:52Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cosmos/cosmos-sdk/security/advisories/GHSA-86h5-xcpx-cfqc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cosmos/cosmos-sdk/commit/7dbed2fc0c3ed7c285645e21cb1037d8810372ae"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cosmos/cosmos-sdk/commit/d1b5b0c5ae2c51206cc1849e09e4d59986742cc3"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cosmos/cosmos-sdk"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "ASA-2024-005: Potential slashing evasion during re-delegation"
}