{"id":"CVE-2020-26213","aliases":["EUVD-2021-1117","GHSA-jhj6-5mh6-4pvf","GO-2022-0903"],"status":"published","title":"Denial of Service in teler","description":"In teler before version 0.0.1, if you run teler inside a Docker container and encounter `errors.Exit` function, it will cause denial-of-service (`SIGSEGV`) because it doesn't get process ID and process group ID of teler properly to kills. The issue is patched in teler 0.0.1 and 0.0.1-dev5.1.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01429,"percentile":0.73353,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2020-11-06T16:45:14Z","modified":"2026-10-20T10:52:55Z","fixes":[{"ecosystem":"Go","package":"ktbs.dev/teler","fixed_in":["0.0.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"ktbs.dev/teler","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.1"}]}]},{"source":"osv","ecosystem":"Go","package":"ktbs.dev/teler","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.0.1"}]}]},{"source":"osv","ecosystem":"Go","package":"ktbs.dev/teler","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.0.1"}]}]}],"products":[{"vendor":"kitabisa","product":"teler"},{"vendor":"teler_project","product":"teler"}],"references":[{"url":"https://github.com/kitabisa/teler/security/advisories/GHSA-jhj6-5mh6-4pvf","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/kitabisa/teler/commit/ec6082049dba9e44a21f35fb7b123d42ce1a1a7e","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-26213","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-jhj6-5mh6-4pvf"},{"url":"https://github.com/kitabisa/teler","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-26213","title":"Denial of Service in teler","description":"In teler before version 0.0.1, if you run teler inside a Docker container and encounter `errors.Exit` function, it will cause denial-of-service (`SIGSEGV`) because it doesn't get process ID and process group ID of teler properly to kills. The issue is patched in teler 0.0.1 and 0.0.1-dev5.1.","status":"published","published":"2020-11-06T16:45:14Z","modified":"2024-08-04T15:49:07.177Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:35:46.129376Z"}],"euvd":[{"id":"EUVD-2021-1117","description":"In teler before version 0.0.1, if you run teler inside a Docker container and encounter `errors.Exit` function, it will cause denial-of-service (`SIGSEGV`) because it doesn't get process ID and process group ID of teler properly to kills. The issue is patched in teler 0.0.1 and 0.0.1-dev5.1.","status":"published","published":"2020-11-06T16:45:14Z","modified":"2024-08-04T15:49:07Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T03:07:15.778249Z"}],"ghsa":[{"id":"GHSA-jhj6-5mh6-4pvf","title":"Denial-of-Service within Docker container","description":"### Impact\nIf you run teler inside a Docker container and encounter `errors.Exit` function, it will cause denial-of-service (`SIGSEGV`) because it doesn't get process ID and process group ID of teler properly to kills.\n\n### Specific Go Packages Affected\nktbs.dev/teler/pkg/errors\n\n### Patches\nUpgrade to the \u003e= 0.0.1 version.\n\n### Workarounds\nN/A\n\n### References\n- https://github.com/kitabisa/teler/commit/ec6082049dba9e44a21f35fb7b123d42ce1a1a7e\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [Issues Section](https://github.com/kitabisa/teler/issues)\n* Email us at [infosec@kitabisa.com](mailto:infosec@kitabisa.com)\n","status":"published","published":"2021-05-24T17:00:46Z","modified":"2023-10-02T15:30:28Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:37:07.641671Z"}],"nvd":[{"id":"CVE-2020-26213","description":"In teler before version 0.0.1, if you run teler inside a Docker container and encounter `errors.Exit` function, it will cause denial-of-service (`SIGSEGV`) because it doesn't get process ID and process group ID of teler properly to kills. The issue is patched in teler 0.0.1 and 0.0.1-dev5.1.","status":"published","published":"2020-11-06T17:15:12.28Z","modified":"2026-06-17T03:07:50.13Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:06:21.80969Z"}],"osv":[{"id":"CVE-2020-26213","description":"In teler before version 0.0.1, if you run teler inside a Docker container and encounter `errors.Exit` function, it will cause denial-of-service (`SIGSEGV`) because it doesn't get process ID and process group ID of teler properly to kills. The issue is patched in teler 0.0.1 and 0.0.1-dev5.1.","status":"published","published":"2020-11-06T17:15:12.28Z","modified":"2026-10-20T10:52:55.98945702Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:15.879068Z"},{"id":"GHSA-jhj6-5mh6-4pvf","title":"Denial-of-Service within Docker container","description":"### Impact\nIf you run teler inside a Docker container and encounter `errors.Exit` function, it will cause denial-of-service (`SIGSEGV`) because it doesn't get process ID and process group ID of teler properly to kills.\n\n### Specific Go Packages Affected\nktbs.dev/teler/pkg/errors\n\n### Patches\nUpgrade to the \u003e= 0.0.1 version.\n\n### Workarounds\nN/A\n\n### References\n- https://github.com/kitabisa/teler/commit/ec6082049dba9e44a21f35fb7b123d42ce1a1a7e\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [Issues Section](https://github.com/kitabisa/teler/issues)\n* Email us at [infosec@kitabisa.com](mailto:infosec@kitabisa.com)\n","status":"published","published":"2021-05-24T17:00:46Z","modified":"2026-07-08T06:00:51.263293476Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T15:46:50.336262Z"},{"id":"GO-2022-0903","title":"Denial-of-Service within Docker container in ktbs.dev/teler","description":"Denial-of-Service within Docker container in ktbs.dev/teler","status":"published","published":"2024-08-21T15:29:08Z","modified":"2026-03-03T04:52:29.698899Z","updated_at":"2026-11-02T15:47:00.918515Z"}]}}