{"schema":"voidly-atlas-federal-record/v1","dataset":"nvd-cves","agency":"NIST","source":"NIST National Vulnerability Database","provider":"Voidly","license":"Source data is U.S. federal public domain (17 U.S.C. §105). Re-surfaced by Voidly under CC BY 4.0.","disclaimer":"This is the agency's own public-domain data, curated and made citable by Voidly. Voidly adds no independent claim — always verify against the linked canonical source.","generated_at":"2026-10-20T15:13:57.927Z","record":{"id":"CVE-2026-77937","cve_id":"CVE-2026-77937","published":"2026-10-20T01:17:20.263","last_modified":"2026-10-20T01:17:20.263","status":"Received","description":"Letta through 0.16.8 contains an authentication bypass vulnerability that allows API callers to impersonate other users by supplying a self-asserted user_id HTTP header. Attackers can set user_id to another tenant's ID, even with LETTA_SERVER_SECURE enabled, to read and modify that user's agents, memory and configuration.","cvss_score":8.1,"cvss_severity":"HIGH","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","cwes":"CWE-639","cpe_count":0,"source_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77937","voidly_url":"https://voidly.ai/atlas/federal/nvd-cves/CVE-2026-77937"},"citation":{"voidly_url":"https://voidly.ai/atlas/federal/nvd-cves/CVE-2026-77937","source_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77937","recommended":"CVE-2026-77937 — HIGH. NIST, via Voidly Atlas — Surveillance & Digital-Rights Watch. Retrieved 2026-10-20, https://voidly.ai/atlas/federal/nvd-cves/CVE-2026-77937","ris":"TY  - DATA\nTI  - CVE-2026-77937 — HIGH\nAU  - Voidly\nT2  - Voidly Atlas — Surveillance & Digital-Rights Watch\nPB  - Voidly\nPY  - 2026\nUR  - https://voidly.ai/atlas/federal/nvd-cves/CVE-2026-77937\nN1  - Source: NIST National Vulnerability Database, https://nvd.nist.gov/vuln/detail/CVE-2026-77937. Public domain (17 U.S.C. §105); re-surfaced under CC BY 4.0\nER  - ","apa":"Voidly. (2026). CVE-2026-77937 — HIGH [NIST National Vulnerability Database]. Voidly Atlas. Retrieved 2026-10-20, from https://voidly.ai/atlas/federal/nvd-cves/CVE-2026-77937","bibtex":"@misc{voidly_nvd_cves_CVE202677937,\n  title        = {CVE-2026-77937 — HIGH},\n  author       = {{Voidly}},\n  howpublished = {\\url{https://voidly.ai/atlas/federal/nvd-cves/CVE-2026-77937}},\n  note         = {Source: NIST National Vulnerability Database, https://nvd.nist.gov/vuln/detail/CVE-2026-77937. Public domain (17 U.S.C. §105); re-surfaced under CC BY 4.0},\n  urldate      = {2026-10-20},\n  year         = {2026}\n}"}}