# Erlang OTP vulnerabilities Source: https://junglewise.ai/threats/technologies/otp Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/otp.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 53 vulnerabilities in Erlang OTP: 0 in the last 7 days and 21 in the last 90 days, 3 of them critical and 1 exploited in the wild. The most recent, CVE-2026-96596, was published on 14 October 2026. 3 vulnerabilities in the last four weeks, level on the four before (3). ## Counts - Last 7 days: 0 - Last 30 days: 3 - Last 90 days: 21 - All time: 53 (3 critical, 1 exploited in the wild) ## About Erlang OTP OTP is a set of libraries and tools for building fault-tolerant systems in Erlang. ## Latest Erlang OTP vulnerabilities - [CVE-2026-96596: Erlang OTP erl_tar infinite loop in GNU sparse member handling](https://junglewise.ai/threats/cve-2026-96596-loop-with-unreachable-exit-condition-infinite-loop-vulnerability) (info, published 14 Oct 2026) - [CVE-2026-94200: Erlang OTP ssl denial of service in TLS 1.3 NewSessionTicket](https://junglewise.ai/threats/cve-2026-94200-improper-validation-of-consistency-within-input-vulnerability-in) (info, published 14 Oct 2026) - [CVE-2026-105236: Erlang/OTP improper TLS 1.2 session validation in multi-SNI servers](https://junglewise.ai/threats/cve-2026-105236-improper-certificate-validation-vulnerability-in-the-ssl) (info, published 14 Oct 2026) - [CVE-2026-89422: Erlang/OTP ssl TLS 1.3 server authentication bypass](https://junglewise.ai/threats/cve-2026-89422-key-exchange-without-entity-authentication-vulnerability-in) (info, published 22 Sep 2026) - [CVE-2026-68956: Erlang/OTP SSH unbounded session channel allocation denial of service](https://junglewise.ai/threats/cve-2026-68956-allocation-of-resources-without-limits-or-throttling) (info, published 22 Sep 2026) - [CVE-2026-65634: Erlang OTP asn1 OBJECT IDENTIFIER decoder algorithmic complexity denial of service](https://junglewise.ai/threats/cve-2026-65634-inefficient-algorithmic-complexity-in-the-erlang-otp-asn1-object) (info, published 22 Sep 2026) - [CVE-2026-75538: Erlang/OTP signed integer overflow in inet TCP driver packet parsing](https://junglewise.ai/threats/cve-2026-75538-erlang-otp-signed-integer-overflow-in-inet-tcp-driver-packet) (info, CVSS 8.2, published 1 Sep 2026) - [CVE-2026-74994: OTP inets httpd mod_auth directory namespace collapse](https://junglewise.ai/threats/cve-2026-74994-otp-inets-httpd-mod-auth-directory-namespace-collapse) (info, CVSS 6, published 1 Sep 2026) - [CVE-2026-74835: Erlang OTP inets HTTP server body-size limit bypass in chunked requests](https://junglewise.ai/threats/cve-2026-74835-erlang-otp-inets-http-server-body-size-limit-bypass-in-chunked) (info, CVSS 8.7, published 1 Sep 2026) - [CVE-2026-73812: Erlang inets HTTP request smuggling via Transfer-Encoding and Content-Length](https://junglewise.ai/threats/cve-2026-73812-erlang-inets-http-request-smuggling-via-transfer-encoding-and) (info, CVSS 8.3, published 1 Sep 2026) - [CVE-2026-73276: Erlang OTP inets HTTP request smuggling via header whitespace](https://junglewise.ai/threats/cve-2026-73276-erlang-otp-inets-http-request-smuggling-via-header-whitespace) (info, CVSS 8.3, published 1 Sep 2026) - [CVE-2026-73270: Erlang/OTP inets httpd auth bypass via case sensitivity](https://junglewise.ai/threats/cve-2026-73270-erlang-otp-inets-httpd-auth-bypass-via-case-sensitivity) (info, CVSS 8.2, published 1 Sep 2026) - [CVE-2026-71562: Erlang/OTP inets httpc unbounded numeric header conversion denial of service](https://junglewise.ai/threats/cve-2026-71562-erlang-otp-inets-httpc-unbounded-numeric-header-conversion-denial) (info, CVSS 6.3, published 1 Sep 2026) - [CVE-2026-71380: Erlang/OTP inets httpd denial of service via stalled request body](https://junglewise.ai/threats/cve-2026-71380-erlang-otp-inets-httpd-denial-of-service-via-stalled-request-body) (info, CVSS 8.7, published 1 Sep 2026) - [CVE-2026-70409: Erlang/OTP eldap unbound port integer conversion denial of service](https://junglewise.ai/threats/cve-2026-70409-erlang-otp-eldap-unbound-port-integer-conversion-denial-of) (info, CVSS 6.3, published 1 Sep 2026) - [CVE-2026-70405: Erlang/OTP snmp BER INTEGER decoder denial of service](https://junglewise.ai/threats/cve-2026-70405-erlang-otp-snmp-ber-integer-decoder-denial-of-service) (info, CVSS 6.3, published 1 Sep 2026) - [CVE-2026-70399: Erlang OTP inets httpd resource exhaustion via unlimited connections](https://junglewise.ai/threats/cve-2026-70399-erlang-otp-inets-httpd-resource-exhaustion-via-unlimited) (info, CVSS 8.7, published 1 Sep 2026) - [CVE-2026-66835: Erlang/OTP inets httpd path equivalence authentication bypass](https://junglewise.ai/threats/cve-2026-66835-erlang-otp-inets-httpd-path-equivalence-authentication-bypass) (info, CVSS 8.2, published 1 Sep 2026) - [CVE-2026-66357: Erlang httpd HTTP request smuggling via obs-fold header continuation](https://junglewise.ai/threats/cve-2026-66357-erlang-httpd-http-request-smuggling-via-obs-fold-header) (info, CVSS 8.3, published 1 Sep 2026) - [CVE-2026-59696: Erlang/OTP stdlib URI parser denial of service via long port](https://junglewise.ai/threats/cve-2026-59696-erlang-otp-stdlib-uri-parser-denial-of-service-via-long-port) (info, CVSS 6.9, published 1 Sep 2026) - [CVE-2026-55951: Erlang/OTP httpc memory exhaustion via unbounded response headers](https://junglewise.ai/threats/cve-2026-55951-erlang-otp-httpc-memory-exhaustion-via-unbounded-response-headers) (info, CVSS 8.2, published 1 Sep 2026) - [CVE-2026-59251: Erlang OTP denial of service in public_key certificate path validation](https://junglewise.ai/threats/cve-2026-59251-erlang-otp-denial-of-service-in-public-key-certificate-path) (info, CVSS 8.7, published 27 Jul 2026) - [CVE-2026-59250: Erlang OTP buffer overflow in Megaco flex scanner](https://junglewise.ai/threats/cve-2026-59250-erlang-otp-buffer-overflow-in-megaco-flex-scanner) (info, CVSS 8.3, published 27 Jul 2026) - [CVE-2026-55953: Erlang OTP authentication bypass in SSL TLS 1.2 client](https://junglewise.ai/threats/cve-2026-55953-erlang-otp-authentication-bypass-in-ssl-tls-1-2-client) (info, CVSS 9.1, published 27 Jul 2026) - [CVE-2026-55737: Erlang OTP out-of-bounds write in erts ETF decoder](https://junglewise.ai/threats/cve-2026-55737-erlang-otp-out-of-bounds-write-in-erts-etf-decoder) (info, CVSS 5.1, published 27 Jul 2026) ## Most severe Erlang OTP vulnerabilities - [CVE-2025-32433: Erlang Erlang/OTP authentication bypass in SSH Server](https://junglewise.ai/threats/cve-2025-32433-erlang-erlang-otp-authentication-bypass-in-ssh-server) (critical, exploited in the wild, CVSS 10, published 9 Jun 2025) - [CVE-2026-28808: Erlang OTP incorrect authorization in inets mod_auth](https://junglewise.ai/threats/cve-2026-28808-erlang-otp-incorrect-authorization-in-inets-mod-auth) (critical, CVSS 9.8, published 7 Apr 2026) - [CVE-2026-23941: Erlang OTP HTTP Request Smuggling in inets httpd](https://junglewise.ai/threats/cve-2026-23941-erlang-otp-http-request-smuggling-in-inets-httpd) (critical, CVSS 9.4, published 13 Mar 2026) - [CVE-2026-32144: Erlang OTP auth bypass in OCSP responder validation](https://junglewise.ai/threats/cve-2026-32144-erlang-otp-auth-bypass-in-ocsp-responder-validation) (high, CVSS 7.4, published 7 Apr 2026) - [CVE-2026-23942: Erlang OTP path traversal in ssh_sftpd root directory validation](https://junglewise.ai/threats/cve-2026-23942-erlang-otp-path-traversal-in-ssh-sftpd-root-directory-validation) (medium, CVSS 5.4, published 13 Mar 2026) - [CVE-2026-23943: Erlang OTP SSH denial of service via zlib compression bomb](https://junglewise.ai/threats/cve-2026-23943-erlang-otp-ssh-denial-of-service-via-zlib-compression-bomb) (medium, CVSS 5.3, published 13 Mar 2026) - [CVE-2026-32147: Erlang OTP path traversal in ssh_sftpd module](https://junglewise.ai/threats/cve-2026-32147-erlang-otp-path-traversal-in-ssh-sftpd-module) (medium, CVSS 4.3, published 21 Apr 2026) - [CVE-2026-28810: Erlang OTP DNS cache poisoning in inet_res module](https://junglewise.ai/threats/cve-2026-28810-erlang-otp-dns-cache-poisoning-in-inet-res-module) (low, CVSS 3.7, published 7 Apr 2026) - [CVE-2026-55953: Erlang OTP authentication bypass in SSL TLS 1.2 client](https://junglewise.ai/threats/cve-2026-55953-erlang-otp-authentication-bypass-in-ssl-tls-1-2-client) (info, CVSS 9.1, published 27 Jul 2026) - [CVE-2026-49759: Erlang OTP stack buffer overflow in SCTP error parsing in inet_drv](https://junglewise.ai/threats/cve-2026-49759-erlang-otp-stack-buffer-overflow-in-sctp-error-parsing-in-inet) (info, CVSS 8.8, published 10 Jun 2026) ## Vulnerabilities per week 3 vulnerabilities in the last four weeks, level on the four before (3). | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 15 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 3 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 3 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Erlang technologies - [Erlang Inets](https://junglewise.ai/threats/technologies/inets): 15 vulnerabilities - [Erlang Ssl](https://junglewise.ai/threats/technologies/ssl): 7 vulnerabilities - [Erlang Ash](https://junglewise.ai/threats/technologies/ash): 6 vulnerabilities - [Erlang public key](https://junglewise.ai/threats/technologies/public-key): 5 vulnerabilities - [Erlang ERTS](https://junglewise.ai/threats/technologies/erts): 3 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Erlang OTP vulnerabilities", https://junglewise.ai/threats/technologies/otp, 9 November 2026.