CVE-2026-21620

Relative Path Traversal, Improper Isolation or Compartmentalization vulnerability in erlang otp erlang/otp (tftp_file modules), erlang otp inets (tftp_file modules), erlang otp tftp (tftp_file modules) allows Relative Path Traversal. This vulnerability is associated with program files lib/tftp/src/tftp_file.erl, src/tftp_file.erl. This issue affects OTP from OTP 17.0 before OTP 28.3.2, OTP 27.3.4.8 and OTP 26.2.5.17, corresponding to tftp from 1.0 before 1.2.4, 1.2.2.1 and 1.1.1.1; also inets from 5.10 before 7.0.

CVSS

No CVSS.

References

Link	Resource
https://cna.erlef.org/cves/CVE-2026-21620.html
https://github.com/erlang/otp/commit/3970738f687325138eb75f798054fa8960ac354e
https://github.com/erlang/otp/commit/655fb95725ba2fb811740b57e106873833824344
https://github.com/erlang/otp/commit/696fdec922661d4a3cc528fc34bc24fae8d4ad8a
https://github.com/erlang/otp/pull/10706
https://github.com/erlang/otp/security/advisories/GHSA-hmrc-prh3-rpvp
https://osv.dev/vulnerability/EEF-CVE-2026-21620
https://www.erlang.org/doc/system/versions.html#order-of-versions

Configurations

No configuration.

History

No history.

Information

Published : 2026-02-20 11:15

Updated : 2026-07-24 15:17

NVD link : CVE-2026-21620

Mitre link : CVE-2026-21620

CVE.ORG link : CVE-2026-21620

JSON object : View

Products Affected

No product.

CWE

CWE-23

Relative Path Traversal

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["cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"], "repo": "https://github.com/erlang/otp", "vendor": "Erlang", "modules": ["tftp_file"], "product": "OTP", "versions": [{"status": "affected", "changes": [{"at": "26.2.5.17", "status": "unaffected"}, {"at": "27.3.4.8", "status": "unaffected"}, {"at": "28.3.2", "status": "unaffected"}], "version": "17.0", "lessThan": "*", "versionType": "otp"}, {"status": "affected", "changes": [{"at": "655fb95725ba2fb811740b57e106873833824344", "status": "unaffected"}, {"at": "3970738f687325138eb75f798054fa8960ac354e", "status": "unaffected"}, {"at": "696fdec922661d4a3cc528fc34bc24fae8d4ad8a", "status": "unaffected"}], "version": "07b8f441ca711f9812fad9e9115bab3c3aa92f79", "lessThan": "*", "versionType": "git"}], "packageURL": "pkg:github/erlang/otp", "packageName": "erlang/otp", "programFiles": ["lib/tftp/src/tftp_file.erl"], "collectionURL": "https://github.com", "defaultStatus": "unaffected"}, {"repo": "https://github.com/erlang/otp", "vendor": 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"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "description": [{"lang": "en", "value": "CWE-23"}]}], "descriptions": [{"lang": "en", "value": "Relative Path Traversal, Improper Isolation or Compartmentalization vulnerability in erlang otp erlang/otp (tftp_file modules), erlang otp inets (tftp_file modules), erlang otp tftp (tftp_file modules) allows Relative Path Traversal. This vulnerability is associated with program files lib/tftp/src/tftp_file.erl, src/tftp_file.erl.\n\nThis issue affects OTP from OTP 17.0 before OTP\u00a028.3.2, OTP\u00a027.3.4.8 and OTP\u00a026.2.5.17, corresponding to tftp from 1.0 before 1.2.4, 1.2.2.1 and 1.1.1.1; also inets from 5.10 before 7.0."}, {"lang": "es", "value": "Salto de ruta relativo, vulnerabilidad de aislamiento o compartimentaci\u00f3n inadecuados en erlang otp erlang/otp (m\u00f3dulos tftp_file), erlang otp inets (m\u00f3dulos tftp_file), erlang otp tftp (m\u00f3dulos tftp_file) permite Salto de ruta relativo. Esta vulnerabilidad est\u00e1 asociada con los archivos de programa lib/tftp/src/tftp_file.erl, src/tftp_file.erl.\n\nEste problema afecta a otp: desde 17.0, desde 07b8f441ca711f9812fad9e9115bab3c3aa92f79; otp: desde 5.10 antes de 7.0; otp: desde 1.0."}], "lastModified": "2026-07-24T15:17:13.700", "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}