CVE-2026-21620

TFTP Path Traversal

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 17.0, from 07b8f441ca711f9812fad9e9115bab3c3aa92f79; otp: from 5.10 before 7.0; otp: from 1.0.

INFO

Published Date :

2026-02-20T10:57:08.620Z

Last Modified :

2026-04-07T14:38:08.771Z

Source :

EEF

AFFECTED PRODUCTS

The following products are affected by CVE-2026-21620 vulnerability.

Vendors	Products
Erlang	Erlang/otp Erlang\/otp Otp

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-21620.

URL	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://nvd.nist.gov/vuln/detail/CVE-2026-21620
https://osv.dev/vulnerability/EEF-CVE-2026-21620
https://www.cve.org/CVERecord?id=CVE-2026-21620
https://www.erlang.org/doc/system/versions.html#order-of-versions