{"answers":{"affected":"3 open source packages ship an affected version, including github.com/jm33-m0/emp3r0r/core. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-26201 in the wild and no public exploit code.","fix":"Upgrade github.com/jm33-m0/emp3r0r/core to 0.0.0-20260212232424-ea4d074f081d or later.","what":"CVE-2026-26201 is a high-severity vulnerability in jm33-m0 emp3r0r, published on 19 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-26201 and fix it if it is affected.\n\nWhat it is: CVE-2026-26201 is a high-severity vulnerability in jm33-m0 emp3r0r, published on 19 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-26201 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/jm33-m0/emp3r0r/core (Go): affected all versions; fixed in 0.0.0-20260212232424-ea4d074f081d\n- github.com/jm33-m0/emp3r0r/core (Go): affected all versions; fixed in 0.0.0-20260212232424-ea4d074f081d\n- github.com/jm33-m0/emp3r0r/core (Go): affected all versions; fixed in 0.0.0-20260212232424-ea4d074f081d\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-2026-26201/ (Markdown: https://insights.sbomify.com/CVE-2026-26201/index.md)","id":"CVE-2026-26201","markdown":"https://insights.sbomify.com/CVE-2026-26201/index.md","name":"CVE-2026-26201","record":{"aliases":["GHSA-f5p9-j34q-pwcc","GO-2026-4504"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux C2 framework","requires_auth":"low_privilege","summary":"Concurrent map access without synchronization causes the emp3r0r C2 server to crash, resulting in denial of service.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"emp3r0r","vendor":"jm33-m0"}],"cvss":{"score":7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","version":"4.0"},"cwes":[{"id":"CWE-663","name":"Use of a Non-reentrant Function in a Concurrent Context"},{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"emp3r0r is a C2 designed by Linux users for Linux environments. Prior to version 3.21.2, multiple shared maps are accessed without consistent synchronization across goroutines. Under concurrent activity, Go runtime can trigger `fatal error: concurrent map read and map write`, causing C2 process crash (availability loss). Version 3.21.2 fixes this issue.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"emp3r0r Affected by Concurrent Map Access DoS (panic/crash)","id":"CVE-2026-26201","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Penpot has Arbitrary File Read via create-font-variant RPC endpoint","id":"CVE-2026-26202"},"packages":[{"ecosystem":"Go","fixed":["0.0.0-20260212232424-ea4d074f081d"],"introduced":["0"],"last_affected":[],"package":"github.com/jm33-m0/emp3r0r/core","purl":null,"source":"GHSA-f5p9-j34q-pwcc"},{"ecosystem":"Go","fixed":["0.0.0-20260212232424-ea4d074f081d"],"introduced":["0"],"last_affected":[],"package":"github.com/jm33-m0/emp3r0r/core","purl":"pkg:golang/github.com/jm33-m0/emp3r0r/core","source":"GHSA-f5p9-j34q-pwcc"},{"ecosystem":"Go","fixed":["0.0.0-20260212232424-ea4d074f081d"],"introduced":["0"],"last_affected":[],"package":"github.com/jm33-m0/emp3r0r/core","purl":"pkg:golang/github.com/jm33-m0/emp3r0r/core","source":"GO-2026-4504"}],"prev":{"headline":"HDF5 Affected by H5T__conv_struct_opt Heap Buffer Overflow","id":"CVE-2026-26200"},"products":["emp3r0r"],"published":"2026-02-19","related":[{"cvss_score":9.3,"headline":"emp3r0r Agent-Controlled Metadata to Operator RCE (tmux Command Injection)","id":"CVE-2026-26068","kev_date_added":null,"published":"2026-02-12"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-02-19","vendors":["jm33-m0"]},"summary":"Concurrent map access without synchronization causes the emp3r0r C2 server to crash, resulting in denial of service.","url":"https://insights.sbomify.com/CVE-2026-26201/"}