CVE-2026-16653

A security flaw has been discovered in boazsegev facil.io up to 0.7.58. This affects the function http_sendfile2 of the file lib/facil/http/http.c of the component Public Folder Handler. Performing a manipulation results in path traversal. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://github.com/boazsegev/facil.io/
https://github.com/boazsegev/facil.io/issues/170
https://vuldb.com/cve/CVE-2026-16653
https://vuldb.com/submit/860587
https://vuldb.com/vuln/382396
https://vuldb.com/vuln/382396/cti

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-23 02:16

Updated : 2026-07-23 16:17

NVD link : CVE-2026-16653

Mitre link : CVE-2026-16653

CVE.ORG link : CVE-2026-16653

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

{"id": "CVE-2026-16653", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-16653", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-23T16:06:02.664773Z"}}], "cvssMetricV2": [{"type": "Secondary", "source": "cna@vuldb.com", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "cna@vuldb.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "cna@vuldb.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.5, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "PROOF_OF_CONCEPT", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "cna@vuldb.com", "affectedData": [{"cpes": ["cpe:2.3:a:boazsegev:facil.io:*:*:*:*:*:*:*:*"], "vendor": "boazsegev", "modules": ["Public Folder Handler"], "product": "facil.io", "versions": [{"status": "affected", "version": "0.7.0"}, {"status": "affected", "version": "0.7.1"}, {"status": "affected", "version": "0.7.2"}, {"status": "affected", "version": "0.7.3"}, {"status": "affected", "version": "0.7.4"}, {"status": "affected", "version": "0.7.5"}, {"status": "affected", "version": "0.7.6"}, {"status": "affected", "version": "0.7.7"}, {"status": "affected", "version": "0.7.8"}, {"status": "affected", "version": "0.7.9"}, {"status": "affected", "version": "0.7.10"}, {"status": "affected", "version": "0.7.11"}, {"status": "affected", "version": "0.7.12"}, {"status": "affected", "version": "0.7.13"}, {"status": "affected", "version": "0.7.14"}, {"status": "affected", "version": "0.7.15"}, {"status": "affected", "version": "0.7.16"}, {"status": "affected", "version": "0.7.17"}, {"status": "affected", "version": "0.7.18"}, {"status": "affected", "version": "0.7.19"}, {"status": "affected", "version": "0.7.20"}, {"status": "affected", "version": "0.7.21"}, {"status": "affected", "version": "0.7.22"}, {"status": "affected", "version": "0.7.23"}, {"status": "affected", "version": "0.7.24"}, {"status": "affected", "version": "0.7.25"}, {"status": "affected", "version": "0.7.26"}, {"status": "affected", "version": "0.7.27"}, {"status": "affected", "version": "0.7.28"}, {"status": "affected", "version": "0.7.29"}, {"status": "affected", "version": "0.7.30"}, {"status": "affected", "version": "0.7.31"}, {"status": "affected", "version": "0.7.32"}, {"status": "affected", "version": "0.7.33"}, {"status": "affected", "version": "0.7.34"}, {"status": "affected", "version": "0.7.35"}, {"status": "affected", "version": "0.7.36"}, {"status": "affected", "version": "0.7.37"}, {"status": "affected", "version": "0.7.38"}, {"status": "affected", "version": "0.7.39"}, {"status": "affected", "version": "0.7.40"}, {"status": "affected", "version": "0.7.41"}, {"status": "affected", "version": "0.7.42"}, {"status": "affected", "version": "0.7.43"}, {"status": "affected", "version": "0.7.44"}, {"status": "affected", "version": "0.7.45"}, {"status": "affected", "version": "0.7.46"}, {"status": "affected", "version": "0.7.47"}, {"status": "affected", "version": "0.7.48"}, {"status": "affected", "version": "0.7.49"}, {"status": "affected", "version": "0.7.50"}, {"status": "affected", "version": "0.7.51"}, {"status": "affected", "version": "0.7.52"}, {"status": "affected", "version": "0.7.53"}, {"status": "affected", "version": "0.7.54"}, {"status": "affected", "version": "0.7.55"}, {"status": "affected", "version": "0.7.56"}, {"status": "affected", "version": "0.7.57"}, {"status": "affected", "version": "0.7.58"}]}]}], "published": "2026-07-23T02:16:27.720", "references": [{"url": "https://github.com/boazsegev/facil.io/", "source": "cna@vuldb.com"}, {"url": "https://github.com/boazsegev/facil.io/issues/170", "source": "cna@vuldb.com"}, {"url": "https://vuldb.com/cve/CVE-2026-16653", "source": "cna@vuldb.com"}, {"url": "https://vuldb.com/submit/860587", "source": "cna@vuldb.com"}, {"url": "https://vuldb.com/vuln/382396", "source": "cna@vuldb.com"}, {"url": "https://vuldb.com/vuln/382396/cti", "source": "cna@vuldb.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "cna@vuldb.com", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "A security flaw has been discovered in boazsegev facil.io up to 0.7.58. This affects the function http_sendfile2 of the file lib/facil/http/http.c of the component Public Folder Handler. Performing a manipulation results in path traversal. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet."}], "lastModified": "2026-07-23T16:17:16.053", "sourceIdentifier": "cna@vuldb.com"}