{"id":"CVE-2018-6346","details":"A potential denial-of-service issue in the Proxygen handling of invalid HTTP2 priority settings (specifically a circular dependency). This affects Proxygen prior to v2018.12.31.00.","modified":"2026-05-30T07:53:03.759998Z","published":"2018-12-31T22:29:00.637Z","references":[{"type":"FIX","url":"https://github.com/facebook/proxygen/commit/52cf331743ebd74194d6343a6c2ec52bb917c982"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/facebook/proxygen","events":[{"introduced":"0"},{"fixed":"9292784d2d5ca339a982e584f1fe099518768d53"},{"fixed":"52cf331743ebd74194d6343a6c2ec52bb917c982"}],"database_specific":{"cpe":"cpe:2.3:a:proxygen_project:proxygen:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"2018.12.31.00"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["v2018.12.24.00","v2018.12.17.00","v2018.12.10.00","v2018.12.03.00","v2018.11.26.00","v2018.11.19.00","v2018.11.12.00","v2018.11.05.00","v2018.10.29.00","v2018.10.22.00","v2018.10.15.00","v2018.10.08.00","v2018.10.01.00","v2018.09.24.00","v2018.09.17.00","v2018.09.10.00","v2018.09.03.00","v2018.08.27.00","v2018.08.20.00","v2018.08.13.00","v2018.08.06.00","v2018.07.30.00","v2018.07.23.00","v2018.07.16.00","v2018.07.09.00","v2018.07.02.00","v2018.06.25.00","v2018.06.18.00","v2018.06.11.00","v2018.06.04.00","v2018.05.28.00","v2018.05.21.00","v2018.05.14.00","v2018.05.07.00","v2018.04.30.00","v2018.04.23.00","v2018.04.16.00","v2018.04.09.00","v2018.04.02.00","v2018.03.26.00","v2018.03.19.00","v2018.03.12.00","v2018.03.05.00","v2018.02.26.00","v2018.02.19.00","v2018.02.12.00","v2018.02.05.00","v2018.01.29.00","v2018.01.22.00","v2018.01.15.00","v2018.01.08.00","v2018.01.01.00","v2017.12.25.00","v2017.12.18.00","v2017.12.11.00","v2017.12.04.00","v2017.11.27.00","v2017.11.20.00","v2017.11.13.00","v2017.11.06.00","v2017.10.30.00","v2017.10.23.00","v2017.10.16.00","v2017.10.09.00","v2017.10.02.00","v2017.09.25.00","v2017.09.18.00","v2017.09.11.00","v2017.09.04.00","v2017.08.28.00","v2017.08.21.00","v2017.08.14.00","v2017.08.07.00","v2017.07.31.00","v2017.07.24.00","v2017.07.17.00","v2017.07.10.00","v2017.07.03.00","v2017.06.26.00","v2017.06.19.00","v2017.06.12.00","v2017.06.05.00","v2017.05.29.00","v2017.05.22.00","v2017.05.15.00","v2017.05.08.00","v2017.05.01.00","v2017.04.24.00","v2017.04.17.00","v2017.04.10.00","v2017.04.03.00","v2017.03.27.00","v2017.03.20.00","v2017.03.13.00","v2017.03.06.00","v2017.01.30.00","v2017.01.23.00","v2017.01.16.00","v0.32.0","v0.30.0","v0.29.0","v0.28.0","v0.27.0","v0.26.0","v0.25.0","v0.24.0","v0.23.0","v0.22.0","v0.21.0","v0.20.0","v0.19.0","v0.18.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-6346.json","vanir_signatures_modified":"2026-05-30T07:53:03Z","vanir_signatures":[{"source":"https://github.com/facebook/proxygen/commit/52cf331743ebd74194d6343a6c2ec52bb917c982","signature_type":"Line","id":"CVE-2018-6346-7b55a99e","digest":{"threshold":0.9,"line_hashes":["230449712156875099939158691282102359183","54119929643809062252837333428365008268","292891572538531077032530744604641686809"]},"target":{"file":"proxygen/lib/http/codec/test/HTTP2CodecTest.cpp"},"signature_version":"v1","deprecated":false},{"source":"https://github.com/facebook/proxygen/commit/52cf331743ebd74194d6343a6c2ec52bb917c982","signature_type":"Line","id":"CVE-2018-6346-b9215fd3","digest":{"threshold":0.9,"line_hashes":["109284575450411577558246509559829908367","115774218398046309736763532495824461470","251527013847998687291701768407714357881","54870410458949364531686023674384671471","52328284539631915705417246728720244181","326682915501515019234260919841384479428","202534842530640227950026360856796760100","23628784581736665657687667405288448954","175090869773157792881747427134670709645","159343007607272510029086856096607231200","42335686558035738251676705302118114583","66604707197353220536544647641041647057","239958411686677169619042858286317939796","112787413633313013524610953564690434451","126947835366011784060365453870468503202","291666100022110467297773819106936447504","204967597786252806091899031685854123537"]},"target":{"file":"proxygen/lib/http/codec/HTTP2Codec.cpp"},"signature_version":"v1","deprecated":false}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}