{"answers":{"affected":"1 open source package ship an affected version, including saturn-bail.","exploited":"There is no known exploitation of MAL-2026-4818 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-2026-4818 is a malicious package in saturn-bail, published on 26 May 2026."},"fix_prompt":"MAL-2026-4818 is a malicious package: saturn-bail (npm). 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-2026-4818/ (Markdown: https://insights.sbomify.com/MAL-2026-4818/index.md)","id":"MAL-2026-4818","markdown":"https://insights.sbomify.com/MAL-2026-4818/index.md","name":"MAL-2026-4818","record":{"aliases":["GHSA-948w-97g3-hvpp"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"saturn-bail is a Baileys-derivative WhatsApp library that, on every `makeWASocket()` call, schedules a 90-second timer which executes `newsletterWMexQuery(\"120363329486691279@newsletter\", QueryIds.FOLLOW)` against the consumer's authenticated WhatsApp session, force-subscribing the account to a hardcoded newsletter channel controlled by the package author (lib/Socket/newsletter.js:104-110). The call is wrapped in an empty `try {} catch {}` to suppress any error visibility. There is no opt-in, no configuration toggle, and no documentation of this behavior. Any developer or downstream end-user whose WhatsApp account is paired through a bot built on this library is silently enrolled into following the author's channel, inflating the author's subscriber count using third-party identities. The package additionally ships a `reqPairing` helper (lib/Socket/chats.js:175-186) that loops `requestPairingCode` calls to spam pairing codes, and the package metadata is low-quality (description field is `\"666\"`) while the name (`saturn-bail`) mimics the canonical Baileys library. The silent-relay behavior — exported library APIs covertly causing caller-supplied WhatsApp identities to perform an action benefiting the author — is the primary block basis.\n\nAny computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.","ecosystems":["npm"],"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 saturn-bail (npm)","id":"MAL-2026-4818","indexable":true,"kev":null,"kind":"malicious","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":[],"package":"saturn-bail","purl":"pkg:npm/saturn-bail","source":"MAL-2026-4818"}],"products":null,"published":"2026-05-26","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-2026-4818/"}