{"kind": "product", "path": "vulns/ubuntu-26.04-lts/erlang-cowlib", "name": "erlang-cowlib", "product": "erlang-cowlib", "ecosystem": "Ubuntu:26.04:LTS", "items": [{"id": "CVE-2026-43971", "noindex": false, "published": "2026-08-18T09:01:53.199Z", "modified": "2026-09-16T20:24:09.279Z", "cvss": 6.3, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N", "severity": "medium", "epss": 0.00524, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-43971", "title": "Link Header Directive Smuggling via Unescaped target/rel/Attribute Keys in cow_link:link/1", "description": "Improper Encoding or Escaping of Output vulnerability in ninenines cowlib allows Link header directive smuggling via unescaped special characters in cow_link:link/1.\n\ncow_link:do_link/1 in cowlib interpolates the target URI, rel value, and attribute keys directly into the serialized Link: header value without escaping or token-grammar validation. A > byte in target prematurely closes the URI slot, allowing an attacker to append additional link entries with attacker-chosen rel directives. A \" or \\ in rel escapes the quoted string and opens new parameters. Any byte — including whitespace, =, and \" — in an attribute key is emitted verbatim. Beca", "references": ["https://cna.erlef.org/cves/CVE-2026-43971.html", "https://osv.dev/vulnerability/EEF-CVE-2026-43971", "https://github.com/ninenines/cowlib/commit/485d58dfa91b91d98135dc95e5615f421715dae5"], "fixes": [], "products": [{"name": "erlang-cowlib", "path": "vulns/ubuntu-26.04-lts/erlang-cowlib", "ecosystem": "Ubuntu:26.04:LTS"}]}, {"id": "CVE-2026-59248", "noindex": false, "published": "2026-07-28T09:54:19.579Z", "modified": "2026-07-29T04:18:17.483Z", "cvss": 8.7, "cvss_vector": "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", "severity": "high", "epss": 0.00292, "kev": false, "exploits": ["github-poc", "public-poc"], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-59248", "title": "Unbounded HPACK/QPACK prefixed-integer decoding in Cowlib causes memory-exhaustion DoS", "description": "Allocation of resources without limits vulnerability in ninenines cowlib allows an unauthenticated remote HTTP/2 or HTTP/3 peer to exhaust memory on the vulnerable server (or client) and cause a denial of service.\n\nThe HPACK and QPACK prefixed-integer decoder cow_hpack_common:dec_big_int/3 in src/cow_hpack_common.hrl (invoked from cow_hpack:decode/2 in src/cow_hpack.erl and from cow_qpack:decode_field_section/3 in src/cow_qpack.erl) reads continuation octets until it sees one whose high bit is clear, evaluating Int + (Value bsl M) at each step with the shift M growing by seven per octet. No limit is enforced on the number of continuation octe", "references": ["https://cna.erlef.org/cves/CVE-2026-59248.html", "https://osv.dev/vulnerability/EEF-CVE-2026-59248", "https://github.com/ninenines/cowlib/commit/f582430498072a0c65ad338030321576dc13a343"], "fixes": [], "products": [{"name": "erlang-cowlib", "path": "vulns/ubuntu-26.04-lts/erlang-cowlib", "ecosystem": "Ubuntu:26.04:LTS"}]}, {"id": "CVE-2026-43970", "noindex": false, "published": "2026-05-13T18:43:11.640Z", "modified": "2026-05-15T04:33:30.898Z", "cvss": 8.2, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "severity": "high", "epss": 0.00511, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-43970", "title": "Decompression Bomb in cow_spdy:inflate/2 Allows Memory Exhaustion via Crafted SPDY Frame", "description": "Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in ninenines cowlib allows unauthenticated remote denial of service via memory exhaustion.\n\ncow_spdy:inflate/2 in cowlib passes peer-supplied compressed bytes directly to zlib:inflate/2 with no output size bound. The SPDY header compression dictionary (?ZDICT) is public, and zlib compresses long runs of repeated bytes at roughly 1024:1, so a few kilobytes of SPDY frame payload can decompress to gigabytes on the BEAM heap, OOM-killing the node. A single unauthenticated SPDY frame is sufficient to trigger the condition. The parsers for syn_stream, syn_reply, and head", "references": ["https://cna.erlef.org/cves/CVE-2026-43970.html", "https://osv.dev/vulnerability/EEF-CVE-2026-43970", "https://github.com/ninenines/cowlib/commit/16aad3fb9f81f5cda4d1706ff0c54237c619c282"], "fixes": [], "products": [{"name": "erlang-cowlib", "path": "vulns/ubuntu-26.04-lts/erlang-cowlib", "ecosystem": "Ubuntu:26.04:LTS"}]}, {"id": "CVE-2026-7790", "noindex": false, "published": "2026-05-11T18:06:41.490Z", "modified": "2026-05-26T19:46:42.244Z", "cvss": 8.7, "cvss_vector": "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", "severity": "high", "epss": 0.00431, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-7790", "title": "Unbounded chunk-size hex digits in cowlib cause quadratic CPU and memory DoS", "description": "Uncontrolled Resource Consumption vulnerability in ninenines cowlib (cow_http_te module) allows Excessive Allocation.\n\nThe chunked transfer-encoding parser in cow_http_te accepts an unbounded number of hex digits in the chunk-size field. Each digit causes a bignum multiplication (Len * 16 + digit), so parsing N hex digits requires O(N²) CPU work and O(N) memory. Additionally, when input is drip-fed, the parser discards the accumulated length on each partial read and restarts from zero on resumption, raising the cost to O(N³). An unauthenticated remote attacker can exploit this by sending an HTTP/1.1 request with Transfer-Encoding: chunked and", "references": ["https://cna.erlef.org/cves/CVE-2026-7790.html", "https://osv.dev/vulnerability/EEF-CVE-2026-7790", "https://github.com/ninenines/cowlib/commit/a4b8039ce8c93ab00867ef6b7e888822c09f4369"], "fixes": [], "products": [{"name": "erlang-cowlib", "path": "vulns/ubuntu-26.04-lts/erlang-cowlib", "ecosystem": "Ubuntu:26.04:LTS"}]}], "total": 4, "unknown_count": 0, "release_unconfirmed": false, "page": 1, "pages": 1, "filtered": false, "noindex": false, "filters": {}, "page_size": 20, "products": [{"name": "erlang-cowlib", "path": "vulns/ubuntu-26.04-lts/erlang-cowlib", "ecosystem": "Ubuntu:26.04:LTS"}], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}, {"name": "web", "path": "vulns/stack/web", "slug": "web"}, {"name": "php", "path": "vulns/stack/php", "slug": "php"}, {"name": "python", "path": "vulns/stack/python", "slug": "python"}, {"name": "node", "path": "vulns/stack/node", "slug": "node"}, {"name": "database", "path": "vulns/stack/database", "slug": "database"}, {"name": "containers", "path": "vulns/stack/containers", "slug": "containers"}, {"name": "network", "path": "vulns/stack/network", "slug": "network"}, {"name": "applications", "path": "vulns/stack/applications", "slug": "applications"}], "versions": [], "stats": {"recent": 0, "kev": 0}, "lastmod": "2026-09-16T20:24:09.279Z", "early_advisories": [], "license": "Sie dürfen die Auswahl von PatchFirst und unsere Ergänzungen (Prioritäten, Frühwarnungen, Texte, Zusammenfassungen und Aggregate) für eigene Zwecke einschließlich interner geschäftlicher Aufgaben frei nutzen. Weiterverkauf, kommerzielle Verbreitung und massenhafte Spiegelung dieser Auswahl oder Ergänzungen erfordern eine schriftliche Vereinbarung mit dem Betreiber. Nennen Sie bei jeder Nutzung oder Veröffentlichung der Auswahl oder unserer Ergänzungen PatchFirst (https://patchfirst.dev/vulns/) mit diesem Link zur Feedseite Ihrer Region als Quelle. Originaleinträge aus offenen Quellen unterliegen weiterhin ihren jeweiligen Lizenzen und Bedingungen. Diese Bedingungen beschränken Ihre Rechte an den Originaldaten nicht, die Sie direkt bei den Quellen beziehen können.", "terms_url": "https://patchfirst.dev/de/vulns/#feed-terms", "attribution": {"name": "PatchFirst", "url": "https://patchfirst.dev/vulns/"}, "source_changes": "PatchFirst wählt Einträge aus, normalisiert und kombiniert sie; Zusammenfassungen und Übersetzungen können hinzukommen. Nachrichten werden im jeweiligen Eintrag mit einem Link zur Originalquelle belegt.", "sources": [{"id": "cve", "name": "CVE List / CVE.org", "url": "https://www.cve.org/", "license": "CVE Terms of Use", "terms_url": "https://www.cve.org/Legal/TermsOfUse", "notice": "Copyright © 1999–2021, The MITRE Corporation. LICENSE Submissions : For all materials you submit to the Common Vulnerabilities and Exposures (CVE™), you hereby grant to The MITRE Corporation (MITRE) and all CVE Numbering Authorities (CNAs) a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute such materials and derivative works. Unless required by applicable law or agreed to in writing, you provide such materials on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. CVE Usage : MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. DISCLAIMERS ALL DOCUMENTS AND THE INFORMATION CONTAINED THEREIN PROVIDED BY MITRE ARE PROVIDED ON AN \"AS IS\" BASIS AND THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE MITRE CORPORATION, ITS BOARD OF TRUSTEES, OFFICERS, AGENTS, AND EMPLOYEES, DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION THEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE."}, {"id": "osv", "name": "OSV", "url": "https://osv.dev/", "terms_url": "https://google.github.io/osv.dev/data/", "terms": "Die Lizenzen der Ursprungsdatenbanken unterscheiden sich; siehe Quellenkatalog."}, {"id": "kev", "name": "CISA KEV", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "license": "CC0-1.0", "terms_url": "https://github.com/cisagov/kev-data/blob/develop/LICENSE"}, {"id": "epss", "name": "FIRST EPSS", "url": "https://www.first.org/epss/", "terms_url": "https://www.first.org/epss/faq", "terms": "Frei zugängliche Bewertungen; Quellenangabe erbeten (FIRST EPSS, Bewertungen von Empirical Security)."}, {"id": "github-advisory", "name": "GitHub Advisory Database", "url": "https://github.com/advisories", "license": "CC-BY-4.0", "terms_url": "https://github.com/github/advisory-database/blob/main/LICENSE.md"}, {"id": "exploitdb", "name": "Exploit-DB", "url": "https://www.exploit-db.com/", "license": "GPL-2.0", "terms_url": "https://gitlab.com/exploit-database/exploitdb/-/blob/main/LICENSE.md"}, {"id": "metasploit", "name": "Metasploit", "url": "https://github.com/rapid7/metasploit-framework", "license": "BSD-3-Clause", "terms_url": "https://github.com/rapid7/metasploit-framework/blob/master/LICENSE", "notice": "Copyright (c) 2006-2026, Rapid7, Inc.\nLicense: BSD-3-clause\n Redistribution and use in source and binary forms, with or without modification,\n are permitted provided that the following conditions are met:\n .\n * Redistributions of source code must retain the above copyright notice,\n this list of conditions and the following disclaimer.\n .\n * Redistributions in binary form must reproduce the above copyright notice,\n this list of conditions and the following disclaimer in the documentation\n and/or other materials provided with the distribution.\n .\n * Neither the name of Rapid7, Inc. nor the names of its contributors\n may be used to endorse or promote products derived from this software\n without specific prior written permission.\n .\n THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND\n ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n DISCLAIMED. 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