CVEvulnerability
CVE-2026-21620
2.3 LOW
Official page ↗
- Status
- Deferred
- Published
- 2026-02-20
- Last modified
- 2026-07-24
- Assigner
- 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
- CVSS 4.0 (6b3ad84c-e1a6-4bf7-a703-f496b71e49db)
- 2.3 LOW — CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Weaknesses
- CWE-23
Description
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.
Related
Weakness · CWE (1)
- CWE-23 Relative Path Traversal weakness
References
- https://cna.erlef.org/cves/CVE-2026-21620.html cna.erlef.org
- https://github.com/erlang/otp/commit/3970738f687325138eb75f798054fa8960ac354e github.com
- https://github.com/erlang/otp/commit/655fb95725ba2fb811740b57e106873833824344 github.com
- https://github.com/erlang/otp/commit/696fdec922661d4a3cc528fc34bc24fae8d4ad8a github.com
- https://github.com/erlang/otp/pull/10706 github.com
- https://github.com/erlang/otp/security/advisories/GHSA-hmrc-prh3-rpvp github.com
- https://osv.dev/vulnerability/EEF-CVE-2026-21620 osv.dev
- https://www.erlang.org/doc/system/versions.html#order-of-versions www.erlang.org