{"cve":{"cve_id":"CVE-2023-39325","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.03796,"epss_percentile":0.89192,"epss_as_of":"2026-08-26","description":"A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function.","published_at":"2023-10-11T21:15:02.727000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://go.dev/issue/63417","https://go.dev/cl/534215","https://go.dev/cl/534235","https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ","https://pkg.go.dev/vuln/GO-2023-2102","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSEGD2IWKNUO3DWY4KQGUQM5BISRWHQE/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/","https://security.netapp.com/advisory/ntap-20231110-0008/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OXGWPQOJ3JNDW2XIYKIVJ7N7QUIFNM2Q/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HZQIELEIRSZUYTFFH5KTH2YJ4IIQG2KE/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QF5QSYAOPDOWLY6DUHID56Q4HQFYB45I/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XTNLSL44Y5FB6JWADSZH6DCV4JJAAEQY/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ECRC75BQJP6FJN2L7KCKYZW4DSBD7QSD/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YRKEXKANQ7BKJW2YTAMP625LJUJZLJ4P/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2BBIDR2ZMB3X5BC7SR4SLQMHRMVPY6L/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UTT7DG3QOF5ZNJLUGHDNLRUIN6OWZARP/","https://security.gentoo.org/glsa/202311-09","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ULQQONMSCQSH5Z5OWFFQHCGEZ3NL4DRJ/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R3UETKPUB3V5JS5TLZOF3SMTGT5K5APS/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SZN67IL7HMGMNAVLOTIXLIHUDXZK4LH/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NG7IMPL55MVWU3LCI4JQJT3K2U5CHDV7/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSY7SXFFTPZFWDM6XELSDSHZLVW3AHK7/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WCNCBYKZXLDFGAJUB7ZP5VLC3YTHJNVH/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AVZDNSMVDAQJ64LJC5I5U5LDM5753647/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZSVEMQV5ROY5YW5QE3I57HT3ITWG5GCV/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CHHITS4PUOZAKFIUBQAQZC7JWXMOYE4B/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3OVW5V2DM5K5IC3H7O42YDUGNJ74J35O/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KEOTKBUPZXHE3F352JBYNTSNRXYLWD6P/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MZQYOOKHQDQ57LV2IAG6NRFOVXKHJJ3Z/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5RSKA2II6QTD4YUKUNDVJQSRYSFC4VFR/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FTMJ3NJIDAZFWJQQSP3L22MUFJ3UP2PT/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IPWCNYB5PQ5PCVZ4NJT6G56ZYFZ5QBU6/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W2LZSWTV4NV4SNQARNXG5T6LRHP26EW2/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PJCUNGIQDUMZ4Z6HWVYIMR66A35F5S74/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L5E5JSJBZLYXOTZWXHJKRVCIXIHVWKJ6/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YJWHBLVZDM5KQSDFRBFRKU5KSSOLIRQ4/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3WJ4QVX2AMUJ2F2S27POOAHRC4K3CHU4/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ODBY7RVMGZCBSTWF2OZGIZS57FNFUL67/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QXOU2JZUBEBP7GBKAYIJRPRBZSJCD7ST/"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:20:27.599140Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"golang.org-x-net","vendor_name":"golang.org/x/net","product_slug":"golang.org-x-net-http2","product_name":"golang.org/x/net/http2","version_start":"0","version_start_inclusive":true,"version_end":"0.17.0","version_end_inclusive":false,"cpe23_uri":"cve5:golang.org-x-net:golang.org-x-net-http2:0:0.17.0"},{"vendor_slug":"go-standard-library","vendor_name":"Go standard library","product_slug":"net-http","product_name":"net/http","version_start":"0","version_start_inclusive":true,"version_end":"1.20.10","version_end_inclusive":false,"cpe23_uri":"cve5:go-standard-library:net-http:0:1.20.10"},{"vendor_slug":"go-standard-library","vendor_name":"Go standard library","product_slug":"net-http","product_name":"net/http","version_start":"1.21.0-0","version_start_inclusive":true,"version_end":"1.21.3","version_end_inclusive":false,"cpe23_uri":"cve5:go-standard-library:net-http:1.21.0-0:1.21.3"}],"exploit_refs":[],"news":[],"references":[{"url":"https://go.dev/issue/63417","source_type":"MISC","tags":[]},{"url":"https://go.dev/cl/534215","source_type":"MISC","tags":[]},{"url":"https://go.dev/cl/534235","source_type":"MISC","tags":[]},{"url":"https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ","source_type":"MISC","tags":[]},{"url":"https://pkg.go.dev/vuln/GO-2023-2102","source_type":"MISC","tags":[]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSEGD2IWKNUO3DWY4KQGUQM5BISRWHQE/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://security.netapp.com/advisory/ntap-20231110-0008/","source_type":"MISC","tags":[]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OXGWPQOJ3JNDW2XIYKIVJ7N7QUIFNM2Q/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HZQIELEIRSZUYTFFH5KTH2YJ4IIQG2KE/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QF5QSYAOPDOWLY6DUHID56Q4HQFYB45I/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XTNLSL44Y5FB6JWADSZH6DCV4JJAAEQY/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ECRC75BQJP6FJN2L7KCKYZW4DSBD7QSD/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YRKEXKANQ7BKJW2YTAMP625LJUJZLJ4P/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2BBIDR2ZMB3X5BC7SR4SLQMHRMVPY6L/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UTT7DG3QOF5ZNJLUGHDNLRUIN6OWZARP/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://security.gentoo.org/glsa/202311-09","source_type":"MISC","tags":[]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ULQQONMSCQSH5Z5OWFFQHCGEZ3NL4DRJ/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R3UETKPUB3V5JS5TLZOF3SMTGT5K5APS/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SZN67IL7HMGMNAVLOTIXLIHUDXZK4LH/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NG7IMPL55MVWU3LCI4JQJT3K2U5CHDV7/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSY7SXFFTPZFWDM6XELSDSHZLVW3AHK7/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WCNCBYKZXLDFGAJUB7ZP5VLC3YTHJNVH/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AVZDNSMVDAQJ64LJC5I5U5LDM5753647/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZSVEMQV5ROY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published","source":null}]}