Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-21620

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 f
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b02538a5f075e980e364aac62ed6e0f24d8d26e3205258fc78fbf71c743f655a
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"defaultStatus":"unaffected","modules":["tftp_file"],"packageName":"inets","packageURL":"pkg:otp/inets?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%20https:%2F%2Fgithub.com%2Ferlang%2Fotp.git","product":"OTP","programFiles":["src/tftp_file.erl"],"repo":"https://github.com/erlang/otp","vendor":"Erlang","versions":[{"lessThan":"7.0","status":"affected","version":"5.10","versionType":"otp"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/affected/1

{"defaultStatus":"unaffected","modules":["tftp_file"],"packageName":"tftp","packageURL":"pkg:otp/tftp?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%20https:%2F%2Fgithub.com%2Ferlang%2Fotp.git","product":"OTP","programFiles":["src/tftp_file.erl"],"repo":"https://github.com/erlang/otp","vendor":"Erlang","versions":[{"changes":[{"at":"1.1.1.1","status":"unaffected"},{"at":"1.2.2.1","status":"unaffected"},{"at":"1.2.4","status":"unaffected"}],"lessThan":"*","status":"affected","version":"1.0","versionType":"otp"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/affected/2

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["tftp_file"],"packageName":"erlang/otp","packageURL":"pkg:github/erlang/otp","product":"OTP","programFiles":["lib/tftp/src/tftp_file.erl"],"repo":"https://github.com/erlang/otp","vendor":"Erlang","versions":[{"changes":[{"at":"26.2.5.17","status":"unaffected"},{"at":"27.3.4.8","status":"unaffected"},{"at":"28.3.2","status":"unaffected"}],"lessThan":"*","status":"affected","version":"17.0","versionType":"otp"},{"changes":[{"at":"655fb95725ba2fb811740b57e10687383…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/affected/0

Affected products and versions

3 source assertions
{"defaultStatus":"unaffected","modules":["tftp_file"],"packageName":"inets","packageURL":"pkg:otp/inets?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%20https:%2F%2Fgithub.com%2Ferlang%2Fotp.git","product":"OTP","programFiles":["src/tftp_file.erl"],"repo":"https://github.com/erlang/otp","vendor":"Erlang","versions":[{"lessThan":"7.0","status":"affected","version":"5.10","versionType":"otp"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/affected/1
{"defaultStatus":"unaffected","modules":["tftp_file"],"packageName":"tftp","packageURL":"pkg:otp/tftp?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%20https:%2F%2Fgithub.com%2Ferlang%2Fotp.git","product":"OTP","programFiles":["src/tftp_file.erl"],"repo":"https://github.com/erlang/otp","vendor":"Erlang","versions":[{"changes":[{"at":"1.1.1.1","status":"unaffected"},{"at":"1.2.2.1","status":"unaffected"},{"at":"1.2.4","status":"unaffected"}],"lessThan":"*","status":"affected","version":"1.0","versionType":"otp"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/affected/2
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["tftp_file"],"packageName":"erlang/otp","packageURL":"pkg:github/erlang/otp","product":"OTP","programFiles":["lib/tftp/src/tftp_file.erl"],"repo":"https://github.com/erlang/otp","vendor":"Erlang","versions":[{"changes":[{"at":"26.2.5.17","status":"unaffected"},{"at":"27.3.4.8","status":"unaffected"},{"at":"28.3.2","status":"unaffected"}],"lessThan":"*","status":"affected","version":"17.0","versionType":"otp"},{"changes":[{"at":"655fb95725ba2fb811740b57e10687383…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":2.3,"baseSeverity":"LOW","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-23","description":"CWE-23 Relative Path Traversal","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/problemTypes/0/descriptions/0

Source references

8 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-21620.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/erlang/otp/commit/3970738f687325138eb75f798054fa8960ac354e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/references/6
{"tags":["patch"],"url":"https://github.com/erlang/otp/commit/655fb95725ba2fb811740b57e106873833824344"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/references/7
{"tags":["patch"],"url":"https://github.com/erlang/otp/commit/696fdec922661d4a3cc528fc34bc24fae8d4ad8a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/references/5
{"tags":["patch"],"url":"https://github.com/erlang/otp/pull/10706"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/references/4
{"tags":["vendor-advisory","related"],"url":"https://github.com/erlang/otp/security/advisories/GHSA-hmrc-prh3-rpvp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-21620"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/references/2
{"tags":["x_version-scheme"],"url":"https://www.erlang.org/doc/system/versions.html#order-of-versions"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82d12a2e28f67f4a33ee20006a9a9dea3f1f11010386adc9c9dbcfb87620d42 · sha256:25adf6b4cf022406… · /containers/cna/references/3

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer