{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-21897 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-21897 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-21897 is a high-severity memory corruption vulnerability in nasa CryptoLib, published on 10 Jan 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-2026-21897 and fix it if it is affected.\n\nWhat it is: CVE-2026-21897 is a high-severity memory corruption vulnerability in nasa CryptoLib, published on 10 Jan 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-2026-21897 in the wild and no public exploit code.\n\nAffected product: nasa CryptoLib. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-21897/ (Markdown: https://insights.sbomify.com/CVE-2026-21897/index.md)","id":"CVE-2026-21897","markdown":"https://insights.sbomify.com/CVE-2026-21897/index.md","name":"CVE-2026-21897","record":{"aliases":["GHSA-9x7j-gx23-7m5r"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Space data link security library","requires_auth":"none","summary":"An out-of-bounds write in CryptoLib allows attackers to corrupt memory and potentially execute arbitrary code or escalate privileges in spacecraft communications.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"cryptolib","vendor":"nasa"}],"cvss":{"score":7.3,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight System (cFS) and a ground station. Prior to version 1.4.3, the Crypto_Config_Add_Gvcid_Managed_Parameters function only checks whether gvcid_counter \u003e GVCID_MAN_PARAM_SIZE. As a result, it allows up to the 251st entry, which causes a write past the end of the array, overwriting gvcid_counter located immediately after gvcid_managed_parameters_array[250]. This leads to an out-of-bounds write, and the overwritten gvcid_counter may become an arbitrary value, potentially affecting the parameter lookup/registration logic that relies on it. This issue has been patched in version 1.4.3.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"CryptoLib Has Out-of-Bounds Write in Crypto_Config_Add_Gvcid_Managed_Parameters","id":"CVE-2026-21897","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"CryptoLib Has Out-of-bounds Read in Crypto_AOS_ProcessSecurity","id":"CVE-2026-21898"},"packages":[],"prev":{"headline":"Kirby is missing permission checks in the content changes API","id":"CVE-2026-21896"},"products":["CryptoLib"],"published":"2026-01-10","related":[{"cvss_score":9.4,"headline":"CryptoLib Has Heap Overflow in Crypto_TM_ProcessSecurity due to Unchecked Secondary Header Length","id":"CVE-2025-30216","kev_date_added":null,"published":"2025-03-25"},{"cvss_score":9.3,"headline":"Heap Buffer Overflow via Incomplete Length Check in `Crypto_TC_ApplySecurity`","id":"CVE-2025-30356","kev_date_added":null,"published":"2025-04-01"},{"cvss_score":8.9,"headline":"CryptoLib's Crypto_TC_ApplySecurity() Has a Heap Buffer Overflow Vulnerability","id":"CVE-2025-29909","kev_date_added":null,"published":"2025-03-17"},{"cvss_score":8.9,"headline":"CryptoLib Has Heap Buffer Overflow in Crypto_AOS_ProcessSecurity Function","id":"CVE-2025-29911","kev_date_added":null,"published":"2025-03-17"},{"cvss_score":8.9,"headline":"CryptoLib Has Heap Buffer Overflow Due to Unsigned Integer Underflow in Crypto_TC_ProcessSecurity","id":"CVE-2025-29912","kev_date_added":null,"published":"2025-03-17"},{"cvss_score":8.9,"headline":"CryptoLib's Crypto_TC_Prep_AAD Has Buffer Overflow Due to Integer Underflow","id":"CVE-2025-29913","kev_date_added":null,"published":"2025-03-17"},{"cvss_score":8.8,"headline":"CryptoLib vulnerable to Stack Buffer Overflow in Crypto_Key_Update due to missing TLV length check","id":"CVE-2025-64096","kev_date_added":null,"published":"2025-10-30"}],"sources":[{"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)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-01-12","vendors":["nasa"]},"summary":"An out-of-bounds write in CryptoLib allows attackers to corrupt memory and potentially execute arbitrary code or escalate privileges in spacecraft communications.","url":"https://insights.sbomify.com/CVE-2026-21897/"}