mal-2026-3181
Vulnerability from ossf_malicious_packages
Published
2026-04-29 12:00
Modified
2026-04-30 22:25
Summary
Malicious code in period-newline (npm)
Details

Malicious npm package published by threat actor "ryanmccollum1" impersonating a benign text-formatting utility. Part of the same supply chain attack campaign as redeem-onchain-sdk, which collects SSH keys, AWS credentials, .npmrc tokens, Docker auth, Chrome saved logins, .env files, and git history, exfiltrating over a raw TCP socket to an AWS-hosted C2. Published by threat actor "ryanmccollum1" as part of the same campaign as redeem-onchain-sdk.

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (8767021a9be7ca72d7ce96c66b0908ab5750ac7e7e9e6e1d4dab952d5f3028f9)

The package period-newline was found to contain malicious code.

Credits
Amazon Inspector actran@amazon.com
SafeDep safedep.io
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "period-newline"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": [
        "0.1.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "actran@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    },
    {
      "contact": [
        "https://safedep.io"
      ],
      "name": "SafeDep",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "import_time": "2026-04-30T22:23:13.914364807Z",
        "modified_time": "2026-04-30T21:59:18Z",
        "sha256": "8767021a9be7ca72d7ce96c66b0908ab5750ac7e7e9e6e1d4dab952d5f3028f9",
        "source": "amazon-inspector",
        "versions": [
          "0.1.0"
        ]
      }
    ]
  },
  "details": "Malicious npm package published by threat actor \"ryanmccollum1\" impersonating a benign text-formatting utility. Part of the same supply chain attack campaign as redeem-onchain-sdk, which collects SSH keys, AWS credentials, .npmrc tokens, Docker auth, Chrome saved logins, .env files, and git history, exfiltrating over a raw TCP socket to an AWS-hosted C2. Published by threat actor \"ryanmccollum1\" as part of the same campaign as redeem-onchain-sdk.\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (8767021a9be7ca72d7ce96c66b0908ab5750ac7e7e9e6e1d4dab952d5f3028f9)\nThe package period-newline was found to contain malicious code.\n",
  "id": "MAL-2026-3181",
  "modified": "2026-04-30T22:25:11Z",
  "published": "2026-04-29T12:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://safedep.io/redeem-onchain-sdk-polymarket-npm-malware/"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in period-newline (npm)"
}


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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.