{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13523 exists.","fix":"No fix has been published for CVE-2026-13523 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-13523 is a medium-severity denial of service vulnerability in GPAC, published on 29 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-13523 and fix it if it is affected.\n\nWhat it is: CVE-2026-13523 is a medium-severity denial of service vulnerability in GPAC, published on 29 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13523 exists.\n\nAffected product: GPAC. 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-2026-13523/ (Markdown: https://insights.sbomify.com/CVE-2026-13523/index.md)","id":"CVE-2026-13523","markdown":"https://insights.sbomify.com/CVE-2026-13523/index.md","name":"CVE-2026-13523","record":{"aliases":["DEBIAN-CVE-2026-13523","GHSA-c4wq-769x-vwcv","UBUNTU-CVE-2026-13523"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"GPAC multimedia library","requires_auth":"low_privilege","summary":"A local attacker can cause denial of service in GPAC via data amplification in the ISOBMFF parser, requiring a patch to mitigate.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-409","name":"Improper Handling of Highly Compressed Data (Data Amplification)"},{"id":"CWE-404","name":"Improper Resource Shutdown or Release"}],"description":"A weakness has been identified in GPAC up to 26.02.0. This affects an unknown part of the file src/utils/base_encoding.c of the component ISOBMFF Parser. Executing a manipulation can lead to highly compressed data. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. This patch is called 297f2d8d1f493d8b241330533cd47f7da758aeb3. A patch should be applied to remediate this issue. The vendor confirms: \"We added a check on inflate output size, if it surpasses 32 times the input size we stop in error. This value could be adjusted later.\"","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"GPAC ISOBMFF base_encoding.c data amplification","id":"CVE-2026-13523","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"CherryHQ cherry-studio MCP OAuth Local Callback Server callback.ts improper authorization","id":"CVE-2026-13524"},"packages":[],"prev":{"headline":"Investintech SlimPDFReader PDF File SlimPDFReader.exe TeighaDo+0x25cde0 out-of-bounds","id":"CVE-2026-13522"},"products":["GPAC"],"published":"2026-06-29","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-29","vendors":["n/a"]},"summary":"A local attacker can cause denial of service in GPAC via data amplification in the ISOBMFF parser, requiring a patch to mitigate.","url":"https://insights.sbomify.com/CVE-2026-13523/"}