UpHeron
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Servers and applications

CVE-2026-54891

Improper Enforcement of Message Integrity During Transmission in a Communication Channel vulnerability in Erlang/OTP ssl (tls_gen_connection module) allows a network-positioned attacker to inject unauthenticated plaintext that the TLS client application later treats as authenticated server data. The function tls_gen_connection:handle_protocol_record/3 rejects APPLICATION_DATA records that arrive…

Severity
Medium 6.3
Published
2 Jul 2026
Last changed
8 Sept 2026
Added to UpHeron
16 Oct 2026
Fixed in
27.3.4.14, 28.5.0.3, 29.0.3
Sources
NVD

Affected software

SoftwareAffected versions
Erlang/OTPServers and applications · cpe:a:erlang:erlang\/otp
  • From 17.0 before 27.3.4.14
  • From 28.0 before 28.5.0.3
  • From 29.0 before 29.0.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-54891
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-54891