{"answers":{"affected":"1 open source package ship an affected version, including pullgetsage.","exploited":"There is no known exploitation of MAL-2026-16366 in the wild and no public exploit code.","fix":"Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.","what":"MAL-2026-16366 is a malicious package in pullgetsage, published on 21 Sep 2026."},"fix_prompt":"MAL-2026-16366 is a malicious package: pullgetsage (PyPI). Every version was published to cause harm.\n\nTask:\n1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.\n2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.\n3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.\n4. If the package is not used anywhere, say so and change nothing.\n\nReference: https://insights.sbomify.com/MAL-2026-16366/ (Markdown: https://insights.sbomify.com/MAL-2026-16366/index.md)","id":"MAL-2026-16366","markdown":"https://insights.sbomify.com/MAL-2026-16366/index.md","name":"MAL-2026-16366","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On import, __init__.py archives the installer's Telegram Desktop tdata directory (%APPDATA%/Telegram Desktop/tdata) into a zip named 'aiosendletter_logs' and POSTs it to a hardcoded Cloudflare Workers endpoint at https://red-poetry-6b6f.martinmcflywork.workers.dev/. The tdata directory holds Telegram session keys; uploading it enables full account takeover of the installer's Telegram account. The behavior is disguised with misleading identifiers ('aiosendletter_logs', 'aioletter initialized') and empty except-block prints that silently swallow errors, and the stated package purpose ('a library filled with books') is unrelated to Telegram.\n\nPackage hides code to exfiltrate files. Most releases target unclear files, but some reveal the goal to exfiltrate sensitive Telegram data.\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\nCampaign: 2026-09-aiosendletter\n\nReasons (based on the campaign):\n\n - files-exfiltration\n\n - target:telegram","ecosystems":["PyPI"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"Malicious code in pullgetsage (PyPI)","id":"MAL-2026-16366","indexable":true,"kev":null,"kind":"malicious","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"PyPI","fixed":[],"introduced":[],"last_affected":[],"package":"pullgetsage","purl":"pkg:pypi/pullgetsage","source":"MAL-2026-16366"}],"products":null,"published":"2026-09-21","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"OpenSSF Malicious Packages","prefix":"MAL"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":null,"url":"https://insights.sbomify.com/MAL-2026-16366/"}