{"answers":{"affected":"2 open source packages ship an affected version, including nginx and nginx-gateway. It affects 4 products.","exploited":"There is no known exploitation of CVE-2026-42926 in the wild and no public exploit code.","fix":"Upgrade nginx to 1.30.1 or later.","what":"CVE-2026-42926 is a medium-severity vulnerability in F5 NGINX Open Source, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-42926 and fix it if it is affected.\n\nWhat it is: CVE-2026-42926 is a medium-severity vulnerability in F5 NGINX Open Source, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-42926 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- nginx (Bitnami): affected from 1.29.4; fixed in 1.30.1\n- nginx-gateway (Bitnami): affected from 1.29.4; fixed in 1.30.1\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-42926/ (Markdown: https://insights.sbomify.com/CVE-2026-42926/index.md)","id":"CVE-2026-42926","markdown":"https://insights.sbomify.com/CVE-2026-42926/index.md","name":"CVE-2026-42926","record":{"aliases":["BIT-nginx-2026-42926","BIT-nginx-gateway-2026-42926","DEBIAN-CVE-2026-42926","ECHO-64e0-d4ec-3b8b","GHSA-v43f-895r-chhh","MINI-5gj3-wj3v-54w5","MINI-5gvg-v9c4-ww8g"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["data_modify","other"],"network_reachable":"yes","non_default_config":true,"product_category":"NGINX web server","requires_auth":"none","summary":"Attackers can inject frame headers and payload bytes to upstream peers when NGINX proxies HTTP/2 traffic with specific body settings.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"f5","cpe":[{"product":"nginx_gateway_fabric","vendor":"f5"},{"product":"nginx_ingress_controller","vendor":"f5"},{"product":"nginx_instance_manager","vendor":"f5"},{"product":"nginx_open_source","vendor":"f5"}],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-172","name":"Improper Encoding or Decoding of Data"}],"description":"When NGINX Open Source is configured to proxy HTTP/2 traffic by setting proxy_http_version to 2, and also uses proxy_set_body, an attacker may be able to inject frame headers and payload bytes to the upstream peer.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","ecosystems":["Bitnami"],"exploits":{"exploitdb":0,"first_seen":"2026-06-06","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-06-06T17:19:16Z","kind":"github_poc","ref":"https://github.com/ikarolaborda/CVE2026-42926","stars":0,"title":"Controlled NGINX HTTP/2 frame injection lab for CVE-2026-42926 patch validation and defensive research"}],"tier":"poc_unverified"},"has_fix":true,"headline":"NGINX ngx_http_proxy_v2_module vulnerability","id":"CVE-2026-42926","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"other","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"MacGregor Voyage Data Recorder (VDR) G4e Use of Hard-coded Credentials","id":"CVE-2026-42929"},"packages":[{"ecosystem":"Bitnami","fixed":["1.30.1"],"introduced":["1.29.4"],"last_affected":[],"package":"nginx","purl":"pkg:bitnami/nginx","source":"BIT-nginx-2026-42926"},{"ecosystem":"Bitnami","fixed":["1.30.1"],"introduced":["1.29.4"],"last_affected":[],"package":"nginx-gateway","purl":"pkg:bitnami/nginx-gateway","source":"BIT-nginx-gateway-2026-42926"}],"prev":{"headline":"BIG-IP iControl SOAP vulnerability","id":"CVE-2026-42924"},"products":["NGINX Open Source"],"published":"2026-05-13","related":[{"cvss_score":9.2,"headline":"NGINX Map directive and Regex matching vulnerability","id":"CVE-2026-42533","kev_date_added":null,"published":"2026-07-15"},{"cvss_score":9.2,"headline":"NGINX Open-Source ngx_http_v3_module vulnerability","id":"CVE-2026-42530","kev_date_added":null,"published":"2026-06-17"},{"cvss_score":8.8,"headline":"NGINX ngx_http_slice_module vulnerability","id":"CVE-2026-60005","kev_date_added":null,"published":"2026-07-15"},{"cvss_score":8.6,"headline":"NGINX Gateway Fabric vulnerability","id":"CVE-2026-11311","kev_date_added":null,"published":"2026-06-17"},{"cvss_score":8.6,"headline":"NGINX Gateway Fabric vulnerability","id":"CVE-2026-50107","kev_date_added":null,"published":"2026-06-17"},{"cvss_score":8.3,"headline":"NGINX ngx_http_ssi_module vulnerability","id":"CVE-2026-56434","kev_date_added":null,"published":"2026-07-15"},{"cvss_score":8.2,"headline":"NGINX vulnerability","id":"CVE-2026-1642","kev_date_added":null,"published":"2026-02-04"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-13","vendors":["F5"]},"summary":"Attackers can inject frame headers and payload bytes to upstream peers when NGINX proxies HTTP/2 traffic with specific body settings.","url":"https://insights.sbomify.com/CVE-2026-42926/"}