{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-78253 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-78253 is a low-severity denial of service vulnerability in qt, published on 23 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-78253 and fix it if it is affected.\n\nWhat it is: CVE-2026-78253 is a low-severity denial of service vulnerability in qt, published on 23 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-78253 in the wild and no public exploit code.\n\nAffected product: qt. 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-2026-78253/ (Markdown: https://insights.sbomify.com/CVE-2026-78253/index.md)","id":"CVE-2026-78253","markdown":"https://insights.sbomify.com/CVE-2026-78253/index.md","name":"CVE-2026-78253","record":{"aliases":["AZL-106827","DEBIAN-CVE-2026-78253","ECHO-abe8-219d-6f61","GHSA-cpqc-q57w-7c2q","UBUNTU-CVE-2026-78253"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Qt XML library","requires_auth":"none","summary":"Attackers can crash applications using Qt's XML reader by sending crafted XML documents that cause stack exhaustion.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Qt","cpe":[],"cvss":{"score":2.3,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:N/R:U/RE:L/U:Green","version":"4.0"},"cwes":[{"id":"CWE-674","name":"Uncontrolled Recursion"}],"description":"Uncontrolled recursion in QXmlStreamReader::readElementText() in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted XML document.","ecosystems":[],"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":"Denial-of-service (stack-exhaustion) vulnerability in QXmlStreamReader::readElementText() impacts Qt","id":"CVE-2026-78253","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Apache Ant: Path traversal in ftp and scp tasks allows arbitrary file write","id":"CVE-2026-78254"},"packages":[],"prev":{"headline":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab","id":"CVE-2026-78252"},"products":["qt"],"published":"2026-09-23","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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-23","vendors":["qt"]},"summary":"Attackers can crash applications using Qt's XML reader by sending crafted XML documents that cause stack exhaustion.","url":"https://insights.sbomify.com/CVE-2026-78253/"}