CVE-2026-71380 (GCVE-0-2026-71380)
Vulnerability from cvelistv5 – Published: 2026-09-01 14:35 – Updated: 2026-09-01 15:52
VLAI
EPSS
VEX
Title
httpd applies no timeout while receiving a request body, parking a worker on a stalled client
Summary
Missing Release of Resource after Effective Lifetime vulnerability in Erlang/OTP inets httpd allows an unauthenticated remote attacker to cause denial of service by sending valid request headers with a large Content-Length and then stalling before the body is complete.
httpd_request_handler:handle_info/2 cancels the request timeout as soon as a parse step succeeds, which includes the headers, and the clause that handles a decoder asking for more data re-arms the socket with {active, once} without setting any further timer. httpd_request:whole_body/2 returns such a continuation whenever the bytes received are fewer than the announced Content-Length, so a well-formed request that stops mid-body leaves the worker waiting indefinitely. The periodic byte-rate check that would reclaim it is armed only when minimum_bytes_per_second is configured, which it is not by default. Repeating this across connections occupies every worker permitted by max_clients and denies service to legitimate clients at negligible bandwidth cost.
This issue affects OTP from OTP 17.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to inets from 5.10 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2. Whether OTP before OTP 17.0, corresponding to inets before 5.10, is affected is unknown.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:52 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/erlang/otp/security/advisories… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-71380.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-71380 | related |
| https://www.erlang.org/doc/system/versions.html#o… | x_version-scheme |
| https://github.com/erlang/otp/commit/81b453aac5a0… | patch |
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Erlang | OTP |
Unknown:
0 , < 17.0
(otp)
Affected: 17.0 , < 27.3.4.17 (otp) Affected: 28.0 , < 28.5.0.6 (otp) Affected: 29.0 , < 29.0.6 (otp) cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
||
| Erlang | OTP |
Unknown:
0 , < 5.10
(otp)
Affected: 5.10 , < 9.3.2.7 (otp) Affected: 9.4 , < 9.6.2.3 (otp) Affected: 9.7 , < 9.7.2 (otp) cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
||
| Erlang | OTP |
Affected:
84adefa331c4159d432d22840663c38f155cd4c1 , < 81b453aac5a006bb8d26405f2bc3cf24e9d7733c
(git)
cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
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unknown.\"}],\"affected\":[{\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\",\"affectedData\":[{\"vendor\":\"Erlang\",\"product\":\"OTP\",\"defaultStatus\":\"unaffected\",\"packageName\":\"otp\",\"cpes\":[\"cpe:2.3:a:erlang:erlang\\\\/otp:*:*:*:*:*:*:*:*\"],\"modules\":[\"httpd_request_handler\",\"httpd_request\"],\"programFiles\":[\"lib/inets/src/http_server/httpd_request_handler.erl\",\"lib/inets/src/http_server/httpd_request.erl\"],\"programRoutines\":[{\"name\":\"httpd_request_handler:handle_info/2\"},{\"name\":\"httpd_request_handler:cancel_request_timeout/1\"},{\"name\":\"httpd_request:whole_body/2\"}],\"packageURL\":\"pkg:sid/erlang.org/otp\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"17.0\",\"versionType\":\"otp\",\"status\":\"unknown\"},{\"version\":\"17.0\",\"lessThan\":\"27.3.4.17\",\"versionType\":\"otp\",\"status\":\"affected\"},{\"version\":\"28.0\",\"lessThan\":\"28.5.0.6\",\"versionType\":\"otp\",\"status\":\"affected\"},{\"version\":\"29.0\",\"lessThan\":\"29.0.6\",\"versionType\":\"otp\",\"status\":\"affected\"}]},{\"vendor\":\"Erlang\",\"product\":\"OTP\",\"defaultStatus\":\"unaffected\",\"packageName\":\"inets\",\"cpes\":[\"cpe:2.3:a:erlang:erlang\\\\/otp:*:*:*:*:*:*:*:*\"],\"modules\":[\"httpd_request_handler\",\"httpd_request\"],\"programFiles\":[\"src/http_server/httpd_request_handler.erl\",\"src/http_server/httpd_request.erl\"],\"programRoutines\":[{\"name\":\"httpd_request_handler:handle_info/2\"},{\"name\":\"httpd_request_handler:cancel_request_timeout/1\"},{\"name\":\"httpd_request:whole_body/2\"}],\"repo\":\"https://github.com/erlang/otp\",\"packageURL\":\"pkg:otp/inets\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"5.10\",\"versionType\":\"otp\",\"status\":\"unknown\"},{\"version\":\"5.10\",\"lessThan\":\"9.3.2.7\",\"versionType\":\"otp\",\"status\":\"affected\"},{\"version\":\"9.4\",\"lessThan\":\"9.6.2.3\",\"versionType\":\"otp\",\"status\":\"affected\"},{\"version\":\"9.7\",\"lessThan\":\"9.7.2\",\"versionType\":\"otp\",\"status\":\"affected\"}]},{\"vendor\":\"Erlang\",\"product\":\"OTP\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://github.com\",\"packageName\":\"erlang/otp\",\"cpes\":[\"cpe:2.3:a:erlang:erlang\\\\/otp:*:*:*:*:*:*:*:*\"],\"modules\":[\"httpd_request_handler\",\"httpd_request\"],\"programFiles\":[\"lib/inets/src/http_server/httpd_request_handler.erl\",\"lib/inets/src/http_server/httpd_request.erl\"],\"programRoutines\":[{\"name\":\"httpd_request_handler:handle_info/2\"},{\"name\":\"httpd_request_handler:cancel_request_timeout/1\"},{\"name\":\"httpd_request:whole_body/2\"}],\"repo\":\"https://github.com/erlang/otp\",\"packageURL\":\"pkg:github/erlang/otp\",\"versions\":[{\"version\":\"84adefa331c4159d432d22840663c38f155cd4c1\",\"lessThan\":\"81b453aac5a006bb8d26405f2bc3cf24e9d7733c\",\"versionType\":\"git\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":8.7,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-09-01T15:52:01.904809Z\",\"id\":\"CVE-2026-71380\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-772\"}]}],\"references\":[{\"url\":\"https://cna.erlef.org/cves/CVE-2026-71380.html\",\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\"},{\"url\":\"https://github.com/erlang/otp/commit/81b453aac5a006bb8d26405f2bc3cf24e9d7733c\",\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\"},{\"url\":\"https://github.com/erlang/otp/security/advisories/GHSA-5vp4-58hc-h8cc\",\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\"},{\"url\":\"https://osv.dev/vulnerability/EEF-CVE-2026-71380\",\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\"},{\"url\":\"https://www.erlang.org/doc/system/versions.html#order-of-versions\",\"source\":\"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-71380\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-01T15:52:01.904809Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-09-01T15:52:05.892Z\"}}], \"cna\": {\"title\": \"httpd applies no timeout while receiving a request body, parking a worker on a stalled client\", \"source\": {\"discovery\": \"INTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"Konrad Pietrzak / Ericsson\"}, {\"lang\": \"en\", \"type\": \"analyst\", \"value\": \"Lukas Backstr\\u00f6m / Erlang Solutions\"}], \"impacts\": [{\"capecId\": \"CAPEC-469\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-469 HTTP DoS\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 8.7, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:erlang:erlang\\\\/otp:*:*:*:*:*:*:*:*\"], \"vendor\": \"Erlang\", \"modules\": [\"httpd_request_handler\", \"httpd_request\"], \"product\": \"OTP\", \"versions\": [{\"status\": \"unknown\", \"version\": \"0\", \"lessThan\": \"17.0\", \"versionType\": \"otp\"}, {\"status\": \"affected\", \"version\": \"17.0\", \"lessThan\": \"27.3.4.17\", \"versionType\": \"otp\"}, {\"status\": \"affected\", \"version\": \"28.0\", \"lessThan\": \"28.5.0.6\", \"versionType\": \"otp\"}, {\"status\": \"affected\", \"version\": \"29.0\", \"lessThan\": \"29.0.6\", \"versionType\": \"otp\"}], \"packageURL\": \"pkg:sid/erlang.org/otp\", \"packageName\": \"otp\", \"programFiles\": [\"lib/inets/src/http_server/httpd_request_handler.erl\", \"lib/inets/src/http_server/httpd_request.erl\"], \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"httpd_request_handler:handle_info/2\"}, {\"name\": \"httpd_request_handler:cancel_request_timeout/1\"}, {\"name\": \"httpd_request:whole_body/2\"}]}, {\"cpes\": [\"cpe:2.3:a:erlang:erlang\\\\/otp:*:*:*:*:*:*:*:*\"], \"repo\": \"https://github.com/erlang/otp\", \"vendor\": \"Erlang\", \"modules\": [\"httpd_request_handler\", \"httpd_request\"], \"product\": \"OTP\", \"versions\": [{\"status\": \"unknown\", \"version\": \"0\", \"lessThan\": \"5.10\", \"versionType\": \"otp\"}, {\"status\": \"affected\", \"version\": \"5.10\", \"lessThan\": \"9.3.2.7\", \"versionType\": \"otp\"}, {\"status\": \"affected\", \"version\": \"9.4\", \"lessThan\": \"9.6.2.3\", \"versionType\": \"otp\"}, {\"status\": \"affected\", \"version\": \"9.7\", \"lessThan\": \"9.7.2\", \"versionType\": \"otp\"}], \"packageURL\": \"pkg:otp/inets\", \"packageName\": \"inets\", \"programFiles\": [\"src/http_server/httpd_request_handler.erl\", \"src/http_server/httpd_request.erl\"], \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"httpd_request_handler:handle_info/2\"}, {\"name\": \"httpd_request_handler:cancel_request_timeout/1\"}, {\"name\": \"httpd_request:whole_body/2\"}]}, {\"cpes\": [\"cpe:2.3:a:erlang:erlang\\\\/otp:*:*:*:*:*:*:*:*\"], \"repo\": \"https://github.com/erlang/otp\", \"vendor\": \"Erlang\", \"modules\": [\"httpd_request_handler\", \"httpd_request\"], \"product\": \"OTP\", \"versions\": [{\"status\": \"affected\", \"version\": \"84adefa331c4159d432d22840663c38f155cd4c1\", \"lessThan\": \"81b453aac5a006bb8d26405f2bc3cf24e9d7733c\", \"versionType\": \"git\"}], \"packageURL\": \"pkg:github/erlang/otp\", \"packageName\": \"erlang/otp\", \"programFiles\": [\"lib/inets/src/http_server/httpd_request_handler.erl\", \"lib/inets/src/http_server/httpd_request.erl\"], \"collectionURL\": \"https://github.com\", \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"httpd_request_handler:handle_info/2\"}, {\"name\": \"httpd_request_handler:cancel_request_timeout/1\"}, {\"name\": \"httpd_request:whole_body/2\"}]}], \"references\": [{\"url\": \"https://github.com/erlang/otp/security/advisories/GHSA-5vp4-58hc-h8cc\", \"tags\": [\"vendor-advisory\", \"related\"]}, {\"url\": \"https://cna.erlef.org/cves/CVE-2026-71380.html\", \"tags\": [\"related\"]}, {\"url\": \"https://osv.dev/vulnerability/EEF-CVE-2026-71380\", \"tags\": [\"related\"]}, {\"url\": \"https://www.erlang.org/doc/system/versions.html#order-of-versions\", \"tags\": [\"x_version-scheme\"]}, {\"url\": \"https://github.com/erlang/otp/commit/81b453aac5a006bb8d26405f2bc3cf24e9d7733c\", \"tags\": [\"patch\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"* Set minimum_bytes_per_second in the httpd configuration, for example {minimum_bytes_per_second, 200}. This arms a periodic byte-rate check that terminates a connection which has stopped delivering data, reclaiming the parked worker. The check is disabled by default.\\n* Place a reverse proxy in front of httpd that enforces its own body-read timeout, such as client_body_timeout in nginx.\\n* Restrict access to the server to trusted clients where the deployment allows it.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cul\u003e\\n\u003cli\u003eSet \u003ccode\u003eminimum_bytes_per_second\u003c/code\u003e in the httpd configuration, for example \u003ccode\u003e{minimum_bytes_per_second, 200}\u003c/code\u003e. This arms a periodic byte-rate check that terminates a connection which has stopped delivering data, reclaiming the parked worker. The check is disabled by default.\u003c/li\u003e\\n\u003cli\u003ePlace a reverse proxy in front of httpd that enforces its own body-read timeout, such as \u003ccode\u003eclient_body_timeout\u003c/code\u003e in nginx.\u003c/li\u003e\\n\u003cli\u003eRestrict access to the server to trusted clients where the deployment allows it.\u003c/li\u003e\\n\u003c/ul\u003e\", \"base64\": false}, {\"type\": \"text/markdown\", \"value\": \"* Set `minimum_bytes_per_second` in the httpd configuration, for example `{minimum_bytes_per_second, 200}`. This arms a periodic byte-rate check that terminates a connection which has stopped delivering data, reclaiming the parked worker. The check is disabled by default.\\n* Place a reverse proxy in front of httpd that enforces its own body-read timeout, such as `client_body_timeout` in nginx.\\n* Restrict access to the server to trusted clients where the deployment allows it.\", \"base64\": false}]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Missing Release of Resource after Effective Lifetime vulnerability in Erlang/OTP inets httpd allows an unauthenticated remote attacker to cause denial of service by sending valid request headers with a large Content-Length and then stalling before the body is complete.\\n\\nhttpd_request_handler:handle_info/2 cancels the request timeout as soon as a parse step succeeds, which includes the headers, and the clause that handles a decoder asking for more data re-arms the socket with {active, once} without setting any further timer. httpd_request:whole_body/2 returns such a continuation whenever the bytes received are fewer than the announced Content-Length, so a well-formed request that stops mid-body leaves the worker waiting indefinitely. The periodic byte-rate check that would reclaim it is armed only when minimum_bytes_per_second is configured, which it is not by default. Repeating this across connections occupies every worker permitted by max_clients and denies service to legitimate clients at negligible bandwidth cost.\\n\\nThis issue affects OTP from OTP\\u00a017.0 before OTP\\u00a027.3.4.17, from OTP\\u00a028.0 before OTP\\u00a028.5.0.6, and from OTP\\u00a029.0 before OTP\\u00a029.0.6, corresponding to inets from 5.10 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2. Whether OTP before OTP\\u00a017.0, corresponding to inets before 5.10, is affected is unknown.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eMissing Release of Resource after Effective Lifetime vulnerability in Erlang/OTP inets httpd allows an unauthenticated remote attacker to cause denial of service by sending valid request headers with a large \u003ccode\u003eContent-Length\u003c/code\u003e and then stalling before the body is complete.\u003c/p\u003e\\n\u003cp\u003e\u003ccode\u003ehttpd_request_handler:handle_info/2\u003c/code\u003e cancels the request timeout as soon as a parse step succeeds, which includes the headers, and the clause that handles a decoder asking for more data re-arms the socket with \u003ccode\u003e{active, once}\u003c/code\u003e without setting any further timer. \u003ccode\u003ehttpd_request:whole_body/2\u003c/code\u003e returns such a continuation whenever the bytes received are fewer than the announced \u003ccode\u003eContent-Length\u003c/code\u003e, so a well-formed request that stops mid-body leaves the worker waiting indefinitely. The periodic byte-rate check that would reclaim it is armed only when \u003ccode\u003eminimum_bytes_per_second\u003c/code\u003e is configured, which it is not by default. Repeating this across connections occupies every worker permitted by \u003ccode\u003emax_clients\u003c/code\u003e and denies service to legitimate clients at negligible bandwidth cost.\u003c/p\u003e\\n\u003cp\u003eThis issue affects OTP from OTP\u0026nbsp;17.0 before OTP\u0026nbsp;27.3.4.17, from OTP\u0026nbsp;28.0 before OTP\u0026nbsp;28.5.0.6, and from OTP\u0026nbsp;29.0 before OTP\u0026nbsp;29.0.6, corresponding to inets from 5.10 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2. Whether OTP before OTP\u0026nbsp;17.0, corresponding to inets before 5.10, is affected is unknown.\u003c/p\u003e\", \"base64\": false}, {\"type\": \"text/markdown\", \"value\": \"Missing Release of Resource after Effective Lifetime vulnerability in Erlang/OTP inets httpd allows an unauthenticated remote attacker to cause denial of service by sending valid request headers with a large `Content-Length` and then stalling before the body is complete.\\n\\n`httpd_request_handler:handle_info/2` cancels the request timeout as soon as a parse step succeeds, which includes the headers, and the clause that handles a decoder asking for more data re-arms the socket with `{active, once}` without setting any further timer. `httpd_request:whole_body/2` returns such a continuation whenever the bytes received are fewer than the announced `Content-Length`, so a well-formed request that stops mid-body leaves the worker waiting indefinitely. The periodic byte-rate check that would reclaim it is armed only when `minimum_bytes_per_second` is configured, which it is not by default. Repeating this across connections occupies every worker permitted by `max_clients` and denies service to legitimate clients at negligible bandwidth cost.\\n\\nThis issue affects OTP from OTP\\u00a017.0 before OTP\\u00a027.3.4.17, from OTP\\u00a028.0 before OTP\\u00a028.5.0.6, and from OTP\\u00a029.0 before OTP\\u00a029.0.6, corresponding to inets from 5.10 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2. Whether OTP before OTP\\u00a017.0, corresponding to inets before 5.10, is affected is unknown.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-772\", \"description\": \"CWE-772 Missing Release of Resource after Effective Lifetime\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:erlang:erlang\\\\/otp:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"27.3.4.17\"}, {\"criteria\": \"cpe:2.3:a:erlang:erlang\\\\/otp:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"28.5.0.6\", \"versionStartIncluding\": \"28.0\"}, {\"criteria\": \"cpe:2.3:a:erlang:erlang\\\\/otp:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"29.0.6\", \"versionStartIncluding\": \"29.0\"}], \"operator\": \"OR\"}], \"operator\": \"AND\"}], \"providerMetadata\": {\"orgId\": \"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\", \"shortName\": \"EEF\", \"dateUpdated\": \"2026-09-01T14:35:31.192Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-71380\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-01T15:52:08.684Z\", \"dateReserved\": \"2026-08-17T12:45:01.757Z\", \"assignerOrgId\": \"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\", \"datePublished\": \"2026-09-01T14:35:31.192Z\", \"assignerShortName\": \"EEF\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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