{"answers":{"affected":"1 open source package ship an affected version, including openssl-encrypt. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-81721 in the wild and no public exploit code.","fix":"Upgrade openssl-encrypt to 1.4.9 or later.","what":"CVE-2026-81721 is a high-severity denial of service vulnerability in Jahlives Openssl Encrypt, published on 27 Aug 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-2026-81721 and fix it if it is affected.\n\nWhat it is: CVE-2026-81721 is a high-severity denial of service vulnerability in Jahlives Openssl Encrypt, published on 27 Aug 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-2026-81721 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- openssl-encrypt (PyPI): affected all versions; fixed in 1.4.9\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-2026-81721/ (Markdown: https://insights.sbomify.com/CVE-2026-81721/index.md)","id":"CVE-2026-81721","markdown":"https://insights.sbomify.com/CVE-2026-81721/index.md","name":"CVE-2026-81721","record":{"aliases":["GHSA-7894-5gw8-69hr","GHSA-9pph-4h37-568j","PYSEC-2026-3803"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Python encryption library","requires_auth":"none","summary":"Attackers can cause denial of service by crafting malicious encrypted files with excessive KDF parameters, exhausting memory in the openssl_encrypt library.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"openssl_encrypt","vendor":"jahlives"}],"cvss":{"score":8.7,"severity":"high","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"openssl_encrypt before 1.4.9 fails to validate KDF cost parameters in encrypted file metadata and keystore headers, allowing attackers to trigger unbounded memory allocation. Attackers can craft malicious encrypted files declaring arbitrarily large Argon2, scrypt, or balloon KDF parameters to exhaust system memory and crash the process without authentication.","ecosystems":["PyPI"],"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":"openssl_encrypt before 1.4.9 Denial of Service via KDF","id":"CVE-2026-81721","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":"jahlives:openssl_encrypt","products":["jahlives:openssl_encrypt"],"type":"denial_of_service","year":"2026"},"n_packages":1,"n_references":2,"next":{"headline":"nltk PorterStemmer before 3.10.3 Quadratic-time DoS","id":"CVE-2026-81722"},"packages":[{"ecosystem":"PyPI","fixed":["1.4.9"],"introduced":["0"],"last_affected":[],"package":"openssl-encrypt","purl":"pkg:pypi/openssl-encrypt","source":"PYSEC-2026-3803"}],"prev":{"headline":"openssl_encrypt before 1.4.9 Denial of Service via Unbounded Argon2","id":"CVE-2026-81720"},"products":["openssl_encrypt"],"published":"2026-08-27","related":[{"cvss_score":9.3,"headline":"openssl_encrypt before 1.4.9 Authentication Bypass via Recovery Slot Removal","id":"CVE-2026-81680","kev_date_added":null,"published":"2026-08-27"},{"cvss_score":9.3,"headline":"openssl_encrypt before 1.4.9 False Encryption via Cleartext Storage","id":"CVE-2026-81681","kev_date_added":null,"published":"2026-08-27"},{"cvss_score":9.3,"headline":"openssl_encrypt before 1.4.9 Text Injection via Recovery Slot Metadata","id":"CVE-2026-81685","kev_date_added":null,"published":"2026-08-27"},{"cvss_score":9.3,"headline":"openssl-encrypt before 1.4.9 Output Injection via Unsanitized Filenames in verify-usb Command","id":"CVE-2026-81694","kev_date_added":null,"published":"2026-08-27"},{"cvss_score":9.3,"headline":"openssl_encrypt before 1.4.9 Terminal Injection via key_id","id":"CVE-2026-81695","kev_date_added":null,"published":"2026-08-27"},{"cvss_score":9.3,"headline":"openssl_encrypt before 1.4.9 Terminal Injection via info Command","id":"CVE-2026-81696","kev_date_added":null,"published":"2026-08-27"},{"cvss_score":9.3,"headline":"openssl_encrypt before 1.4.9 Shell Injection via info command","id":"CVE-2026-81698","kev_date_added":null,"published":"2026-08-27"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-01","vendors":["jahlives"]},"summary":"Attackers can cause denial of service by crafting malicious encrypted files with excessive KDF parameters, exhausting memory in the openssl_encrypt library.","url":"https://insights.sbomify.com/CVE-2026-81721/"}