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CVE Vulnerability Details :
CVE-2026-21620
PUBLISHED
More InfoOfficial Page
Assigner-EEF
Assigner Org ID-6b3ad84c-e1a6-4bf7-a703-f496b71e49db
View Known Exploited Vulnerability (KEV) details
Published At-20 Feb, 2026 | 10:57
Updated At-21 Feb, 2026 | 03:52
Rejected At-
▼CVE Numbering Authority (CNA)
TFTP Path Traversal

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.

Affected Products
Vendor
Erlang
Product
OTP
Collection URL
https://github.com
Package Name
erlang/otp
Repo
https://github.com/erlang/otp
CPEs
  • cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*
Modules
  • tftp_file
Program Files
  • lib/tftp/src/tftp_file.erl
Default Status
unaffected
Versions
Affected
  • From 17.0 before * (otp)
    • -> unaffectedfrom26.2.5.17
    • -> unaffectedfrom27.3.4.8
    • -> unaffectedfrom28.3.2
  • From 07b8f441ca711f9812fad9e9115bab3c3aa92f79 before * (git)
    • -> unaffectedfrom655fb95725ba2fb811740b57e106873833824344
    • -> unaffectedfrom3970738f687325138eb75f798054fa8960ac354e
    • -> unaffectedfrom696fdec922661d4a3cc528fc34bc24fae8d4ad8a
Vendor
Erlang
Product
OTP
Package Name
inets
Repo
https://github.com/erlang/otp
Modules
  • tftp_file
Program Files
  • src/tftp_file.erl
Default Status
unaffected
Versions
Affected
  • From pkg:otp/inets@5.10 before pkg:otp/inets@7.0 (purl)
  • From 5.10 before 7.0 (otp)
Vendor
Erlang
Product
OTP
Package Name
tftp
Repo
https://github.com/erlang/otp
Modules
  • tftp_file
Program Files
  • src/tftp_file.erl
Default Status
unaffected
Versions
Affected
  • From pkg:otp/tftp@1.0 before pkg:otp/tftp@* (purl)
    • -> unaffectedfrompkg:otp/tftp@1.1.1.1
    • -> unaffectedfrompkg:otp/tftp@1.2.2.1
    • -> unaffectedfrompkg:otp/tftp@1.2.4
  • From 1.0 before * (otp)
    • -> unaffectedfrom1.1.1.1
    • -> unaffectedfrom1.2.2.1
    • -> unaffectedfrom1.2.4
Problem Types
TypeCWE IDDescription
CWECWE-23CWE-23 Relative Path Traversal
Type: CWE
CWE ID: CWE-23
Description: CWE-23 Relative Path Traversal
Metrics
VersionBase scoreBase severityVector
4.02.3LOW
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
Version: 4.0
Base score: 2.3
Base severity: LOW
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
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-139CAPEC-139 Relative Path Traversal
CAPEC ID: CAPEC-139
Description: CAPEC-139 Relative Path Traversal
Solutions
Configurations
Workarounds
Exploits
Credits
reporter
Luigino Camastra
remediation reviewer
Jakub Witczak
remediation developer
Raimo Niskanen
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/erlang/otp/security/advisories/GHSA-hmrc-prh3-rpvp
vendor-advisory
https://www.erlang.org/doc/system/versions.html#order-of-versions
x_version-scheme
https://github.com/erlang/otp/pull/10706
patch
https://github.com/erlang/otp/commit/696fdec922661d4a3cc528fc34bc24fae8d4ad8a
patch
https://github.com/erlang/otp/commit/3970738f687325138eb75f798054fa8960ac354e
patch
https://github.com/erlang/otp/commit/655fb95725ba2fb811740b57e106873833824344
patch
Hyperlink: https://github.com/erlang/otp/security/advisories/GHSA-hmrc-prh3-rpvp
Resource:
vendor-advisory
Hyperlink: https://www.erlang.org/doc/system/versions.html#order-of-versions
Resource:
x_version-scheme
Hyperlink: https://github.com/erlang/otp/pull/10706
Resource:
patch
Hyperlink: https://github.com/erlang/otp/commit/696fdec922661d4a3cc528fc34bc24fae8d4ad8a
Resource:
patch
Hyperlink: https://github.com/erlang/otp/commit/3970738f687325138eb75f798054fa8960ac354e
Resource:
patch
Hyperlink: https://github.com/erlang/otp/commit/655fb95725ba2fb811740b57e106873833824344
Resource:
patch
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found