CVE-2026-21620

low

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.

References

https://www.erlang.org/doc/system/versions.html#order-of-versions

https://github.com/erlang/otp/security/advisories/GHSA-hmrc-prh3-rpvp

https://github.com/erlang/otp/pull/10706

https://github.com/erlang/otp/commit/696fdec922661d4a3cc528fc34bc24fae8d4ad8a

https://github.com/erlang/otp/commit/655fb95725ba2fb811740b57e106873833824344

https://github.com/erlang/otp/commit/3970738f687325138eb75f798054fa8960ac354e

Details

Source: Mitre, NVD

Published: 2026-02-20

Updated: 2026-02-20

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity: High

CVSS v4

Base Score: 2.3

Vector: 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

Severity: Low

EPSS

EPSS: 0.00055