The Erlang/OTP ssl TLS 1.2 (and earlier) and DTLS client does not verify that the cipher suite selected by the server in ServerHello was among the suites offered by the client in ClientHello. The client-side tls_handshake:hello/5 handler validates the negotiated protocol version...
Product
erlangssl vulnerabilities
8 published CVES affecting erlangssl, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 8
- Critical
- 1
- High
- 5
- Medium
- 2
- Low
- 0
- Unscored
- 0
- CISA KEV
- 0
Latest erlangssl CVEs
Newest publication first
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CriticalCVSS 9.1 EPSS 0.23%
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HighCVSS 8.7 EPSS 0.48%
The Erlang/OTP ssl application does not detect cycles when reconstructing an incomplete peer certificate chain during a TLS or DTLS handshake. In ssl_certificate:handle_incomplete_chain/5, the received chain is passed to ssl_certificate:build_certificate_chain/5, which walks issu...
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MediumCVSS 6.3 EPSS 0.14%
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 authentica...
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HighCVSS 8.7 EPSS 0.40%
Time-of-check Time-of-use (TOCTOU) race condition vulnerability in Erlang/OTP ssl (dtls_packet_demux module) allows an unauthenticated remote attacker to crash all active DTLS sessions on a listener. A DTLS server listener uses a single shared dtls_packet_demux gen_server process...
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CVE-2026-55952 TLS 1.3 server denial of service via malformed ClientHello pre-shared key extension
PublishedHighCVSS 8.2 EPSS 0.55%The Erlang/OTP ssl application does not validate that the PSK identity list and binder list carried in a TLS 1.3 ClientHello pre-shared key extension have equal length before passing them to the session ticket handler. In tls_handshake_1_3:handle_pre_shared_key/3, an OfferedPreSh...
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CVE-2026-54887 DTLS server cookie bypass during startup window due to empty initial cookie secret
PublishedMediumCVSS 6.3 EPSS 0.25%Use of Default Cryptographic Key vulnerability in Erlang/OTP ssl (DTLS server) allows predictable DTLS cookie computation during the startup window, enabling source address verification bypass. On DTLS server startup, dtls_server_connection:initial_hello/3 initializes previous_co...
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HighCVSS 7.5 EPSS 0.21%
Reliance on IP Address for Authentication vulnerability in Erlang/OTP ssl (inet_tls_dist module) allows unauthenticated bypass of the distribution-over-TLS LAN allowlist. The inet_tls_dist:check_ip/1 function, which enforces a LAN allowlist for Erlang distribution over TLS, calls...
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CVE-2026-32144 OCSP designated-responder authorization bypass via missing signature verification
PublishedHighCVSS 7.6 EPSS 0.21%Improper Certificate Validation vulnerability in Erlang OTP public_key (pubkey_ocsp module) allows OCSP designated-responder authorization bypass via missing signature verification. The OCSP response validation in public_key:pkix_ocsp_validate/5 does not verify that a CA-designat...
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.