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CVE-2026-21620VulnerabilityPublished

SUSE · Security update for erlang

Affects SUSESource GCVE Database

0

Mentioned vulnerabilities

Authoritative record:CVE-2026-21620· Low 2.3

Not known to be exploited · CVSS 2.3 Low · fixed in SUSE package updates : update SUSE otp when convenient.

Data as of 27 Oct 2026, 02:00 UTC

CVSS 4.0 base score
2.3Low
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 7.0, 26.2.5.17, 1.1.1.1
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade OTP and inets to 7.0; erlang/otp to 26.2.5.17; tftp to 1.1.1.1.

Affected software

ProductAffectedFixed in
ErlangOTPAffected
  • >=17.0 <26.2.5.17
Fixed in–
ErlangOTPAffected
  • >=5.10 <7.0
Fixed in
  • 7.0
ErlangOTPAffected
  • >=1.0 <1.1.1.1
Fixed in–
GitHuberlang/otppkg:github/erlang/otpOther threatsAffected
  • >=17.0 <26.2.5.17
Fixed in
  • 26.2.5.17
GitHubinetspkg:github/inetsOther threatsAffected
  • >=5.10 <7.0
Fixed in
  • 7.0
GitHubtftppkg:github/tftpOther threatsAffected
  • >=1.0 <1.1.1.1
Fixed in
  • 1.1.1.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A security update has been released by the SUSE Product Security Team that fixes these vulnerabilities. Users of affected Erlang versions on SUSE should apply the update promptly to remediate these issues. No additional mitigation steps are indicated beyond applying the official update.

Description

This security update for Erlang addresses multiple vulnerabilities including remote arbitrary read/write via TFTP relative path traversal, HTTP request smuggling, path traversal, denial of service from handling highly compressed SSH data, and incorrect authorization leading to unauthenticated access to protected CGI scripts. These issues affect the SUSE distribution of Erlang and have been assigned high severity.

References

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