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.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-8a15e7a423 advisory.

    Erlang ver. 26.2.5.17


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-d51972eee3 advisory.

    Erlang ver. 26.2.5.17


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-21620)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
300866	Fedora 43 : erlang (2026-8a15e7a423)	Nessus	Fedora Local Security Checks	low
300390	Fedora 42 : erlang (2026-d51972eee3)	Nessus	Fedora Local Security Checks	low
299721	Linux Distros Unpatched Vulnerability : CVE-2026-21620	Nessus	Misc.	low

Detections

Analytics

CVE-2026-21620

low

Tenable Plugins

low

low

low