{"kind": "product", "path": "vulns/ubuntu-26.04-lts/thumbor", "name": "thumbor", "product": "thumbor", "ecosystem": "Ubuntu:26.04:LTS", "items": [{"id": "CVE-2026-53502", "noindex": false, "published": "2026-07-31T19:03:16.522Z", "modified": "2026-07-31T19:18:09.047Z", "cvss": 8.7, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "severity": "high", "epss": 0.00522, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-53502", "title": "Thumbor has path traversal via post-validation URL decoding bypass in file_loader", "description": "Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, file_loader decodes percent-encoded path segments after its root-boundary validation, allowing traversal outside FILE_LOADER_ROOT_PATH through watermark or frame filter input. This issue is fixed in 7.8.0.", "references": ["https://github.com/thumbor/thumbor/security/advisories/GHSA-cj54-hpcc-gj6h", "https://github.com/thumbor/thumbor/commit/3b986d13677b30fe6651c8c72ebb25957ac0a40d", "https://github.com/thumbor/thumbor/releases/tag/7.8.0"], "fixes": [], "products": [{"name": "thumbor", "path": "vulns/ubuntu-26.04-lts/thumbor", "ecosystem": "Ubuntu:26.04:LTS"}]}, {"id": "CVE-2026-53505", "noindex": false, "published": "2026-07-31T19:00:22.755Z", "modified": "2026-08-03T17:20:37.186Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.00609, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-53505", "title": "Thumbor proportion filter allows unbounded post-transform resize leading to remote DoS", "description": "Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor's filters:proportion(<value>) filter does not enforce an upper bound on <value> and runs in the post-transform phase. An attacker can trigger extremely large resizes (CPU/memory exhaustion) and cause denial of service. This issue is fixed in 7.8.0.", "references": ["https://github.com/thumbor/thumbor/security/advisories/GHSA-phj3-59pf-cp83", "https://github.com/thumbor/thumbor/commit/2c716119de986cfc68c7071af52a98187e006023", "https://github.com/thumbor/thumbor/releases/tag/7.8.0"], "fixes": [], "products": [{"name": "thumbor", "path": "vulns/ubuntu-26.04-lts/thumbor", "ecosystem": "Ubuntu:26.04:LTS"}]}, {"id": "CVE-2026-53504", "noindex": false, "published": "2026-07-31T18:57:19.257Z", "modified": "2026-07-31T23:31:37.588Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.00609, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-53504", "title": "Thumbor has Regex Denial of Service (ReDoS) in `convolution` filter", "description": "Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, the convolution filter regular expression performs exponential backtracking on crafted repeated numeric input, allowing a URL request to exhaust processing time. This issue is fixed in 7.8.0.", "references": ["https://github.com/thumbor/thumbor/security/advisories/GHSA-5vjc-7cxw-4w6j", "https://github.com/thumbor/thumbor/commit/3f38fe1610d20168e91f76d432212de30727eb2e", "https://github.com/thumbor/thumbor/releases/tag/7.8.0"], "fixes": [], "products": [{"name": "thumbor", "path": "vulns/ubuntu-26.04-lts/thumbor", "ecosystem": "Ubuntu:26.04:LTS"}]}, {"id": "CVE-2026-53503", "noindex": false, "published": "2026-07-31T18:54:20.747Z", "modified": "2026-07-31T21:39:35.108Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.0075, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-53503", "title": "Thumbor convolution filter allows divide-by-zero in C extension leading to remote DoS", "description": "Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor's filters:convolution(<matrix>, <columns>, <should_normalize>) filter passes the user-controlled <columns> value to a C extension (thumbor/ext/filters/_convolution.c) where it is used as a divisor (for % and /) without validating columns > 0. When columns=0, the C code triggers undefined behavior; on x86_64 this reliably results in a fatal divide-by-zero trap (SIGFPE) and crashes the Thumbor process, causing a remote denial of service. This issue is fixed in 7.8.0.", "references": ["https://github.com/thumbor/thumbor/security/advisories/GHSA-cqjp-jf4r-h5q9", "https://github.com/thumbor/thumbor/commit/447e192e3fb92e64c12e5354a56a4a7133f69d73", "https://github.com/thumbor/thumbor/releases/tag/7.8.0"], "fixes": [], "products": [{"name": "thumbor", "path": "vulns/ubuntu-26.04-lts/thumbor", "ecosystem": "Ubuntu:26.04:LTS"}]}, {"id": "CVE-2026-53501", "noindex": false, "published": "2026-07-31T18:42:42.360Z", "modified": "2026-07-31T19:58:01.891Z", "cvss": 8.2, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L", "severity": "high", "epss": 0.00352, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-53501", "title": "Thumbor has HMAC validation bypass via multiple .replace() calls when removing URL signature", "description": "Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor’s HMAC validation can be bypassed due to the use of Python’s .replace() when removing the signature from the URL before validation. Since .replace() removes all occurrences of the substring, an attacker can insert the same signature multiple times in the URL and manipulate the final URL used for validation. This allows crafting URLs where the validated string differs from the actual requested resource, enabling loading images from unintended domains or paths. This issue is fixed in 7.8.0.", "references": ["https://github.com/thumbor/thumbor/security/advisories/GHSA-mw3h-qjxj-6xg9", "https://github.com/thumbor/thumbor/commit/e3ae3e2500537b4d735df4144129a649374bb70b", "https://github.com/thumbor/thumbor/releases/tag/7.8.0"], "fixes": [], "products": [{"name": "thumbor", "path": "vulns/ubuntu-26.04-lts/thumbor", "ecosystem": "Ubuntu:26.04:LTS"}]}, {"id": "CVE-2026-53500", "noindex": false, "published": "2026-07-31T18:35:54.234Z", "modified": "2026-07-31T23:30:44.046Z", "cvss": 8.2, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L", "severity": "high", "epss": 0.00498, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-53500", "title": "Thumbor treats ALLOWED_SOURCES string patterns as unescaped regex, allowing hostname bypass via wildcard dot", "description": "Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, the ALLOWED_SOURCES configuration passes plain strings to re.match() without escaping dots, so a hostname differing at dot positions can match the allowlist. This issue is fixed in 7.8.0.", "references": ["https://github.com/thumbor/thumbor/security/advisories/GHSA-6x26-6r6f-m537", "https://github.com/thumbor/thumbor/commit/68876715350c6c8f49c324e5515e64908830aed7", "https://github.com/thumbor/thumbor/releases/tag/7.8.0"], "fixes": [], "products": [{"name": "thumbor", "path": "vulns/ubuntu-26.04-lts/thumbor", "ecosystem": "Ubuntu:26.04:LTS"}]}], "total": 6, "unknown_count": 0, "release_unconfirmed": false, "page": 1, "pages": 1, "filtered": false, "noindex": false, "filters": {}, "page_size": 20, "products": [{"name": "thumbor", "path": "vulns/ubuntu-26.04-lts/thumbor", "ecosystem": "Ubuntu:26.04:LTS"}], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}, {"name": "web", "path": "vulns/stack/web", "slug": "web"}, {"name": "php", "path": "vulns/stack/php", "slug": "php"}, {"name": "python", "path": "vulns/stack/python", "slug": "python"}, {"name": "node", "path": "vulns/stack/node", "slug": "node"}, {"name": "database", "path": "vulns/stack/database", "slug": "database"}, {"name": "containers", "path": "vulns/stack/containers", "slug": "containers"}, {"name": "network", "path": "vulns/stack/network", "slug": "network"}, {"name": "applications", "path": "vulns/stack/applications", "slug": "applications"}], "versions": [], "stats": {"recent": 0, "kev": 0}, "lastmod": "2026-08-03T17:20:37.186Z", "early_advisories": [], "license": "Puedes utilizar libremente la selección de PatchFirst y nuestras aportaciones (prioridades, alertas tempranas, textos, resúmenes y agregados) para tus propios fines, incluido el uso interno de tu empresa. 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Las noticias incluyen un enlace a la fuente original en cada entrada.", "sources": [{"id": "cve", "name": "CVE List / CVE.org", "url": "https://www.cve.org/", "license": "CVE Terms of Use", "terms_url": "https://www.cve.org/Legal/TermsOfUse", "notice": "Copyright © 1999–2021, The MITRE Corporation. LICENSE Submissions : For all materials you submit to the Common Vulnerabilities and Exposures (CVE™), you hereby grant to The MITRE Corporation (MITRE) and all CVE Numbering Authorities (CNAs) a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute such materials and derivative works. Unless required by applicable law or agreed to in writing, you provide such materials on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. CVE Usage : MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. 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