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14 vulnerabilities by boazsegev
CVE-2026-66731 (GCVE-0-2026-66731)
Vulnerability from nvd – Published: 2026-07-27 16:57 – Updated: 2026-07-27 17:30 X_Open Source
VLAI
EPSS
VEX
Title
facil.io 0.7.5 - 0.7.6 HTTP/1.1 Chunked Transfer Encoding Parser Crash DoS
Summary
facil.io 0.7.5 through 0.7.6 contains a denial-of-service vulnerability in the HTTP/1.1 chunked transfer encoding parser that allows unauthenticated remote attackers to crash the server by sending a negative chunk size value. Attackers can send a single POST request with a Transfer-Encoding: chunked header containing a leading minus sign in the chunk size field, causing the parser in http1_parser.h to compute a large positive integer from the negated value, corrupting internal state and moving the read pointer into unmapped memory resulting in a fault.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/theopaid/Negative-Chunk-Size-P… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/facil-io-htt… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
Credits
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CVE-2026-66730 (GCVE-0-2026-66730)
Vulnerability from nvd – Published: 2026-07-27 16:55 – Updated: 2026-07-27 18:20 X_Open Source
VLAI
EPSS
VEX
Title
facil.io 0.6.0 - 0.7.6 Infinite Loop DoS via Multipart MIME Body Parser
Summary
facil.io 0.6.0 through 0.7.6 contains a denial-of-service vulnerability in the multipart body parser that allows an unauthenticated remote attacker to permanently freeze worker processes at 100% CPU by sending a multipart/form-data request with a partial closing boundary. The missing progress guard in the parser loop causes http_mime_parse to return 0 bytes consumed without setting done or error flags, causing the calling loop to re-invoke the parser on the same buffer indefinitely, exhausting all workers and permanently disabling the server until manually restarted.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/theopaid/Infinite-Loop-DoS-in-… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/facil-io-inf… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-66729 (GCVE-0-2026-66729)
Vulnerability from nvd – Published: 2026-07-27 16:52 – Updated: 2026-07-27 17:54 X_Open Source
VLAI
EPSS
VEX
Title
facil.io 0.6.0 - 0.7.6 Integer Underflow DoS via Multipart MIME Body Parser
Summary
facil.io 0.6.0 through 0.7.6 contains an integer underflow vulnerability in the multipart MIME body parser that allows unauthenticated remote attackers to crash the server process by sending a crafted Content-Disposition header with an empty field name. Attackers can trigger a uint32_t wraparound in http_mime_parser.h causing an out-of-bounds memory read past the name pointer, resulting in a bus fault that crashes the handling worker with a single POST request.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/theopaid/Out-of-Bounds-Read-in… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/facil-io-int… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
Credits
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CVE-2026-16653 (GCVE-0-2026-16653)
Vulnerability from nvd – Published: 2026-07-23 01:15 – Updated: 2026-07-23 16:06
VLAI
EPSS
VEX
Title
boazsegev facil.io Public Folder http.c http_sendfile2 path traversal
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Path Traversal
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/382396 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/382396/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16653 | third-party-advisory |
| https://vuldb.com/submit/860587 | third-party-advisory |
| https://github.com/boazsegev/facil.io/issues/170 | exploitissue-tracking |
| https://github.com/boazsegev/facil.io/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| boazsegev | facil.io |
Affected:
0.7.0
Affected: 0.7.1 Affected: 0.7.2 Affected: 0.7.3 Affected: 0.7.4 Affected: 0.7.5 Affected: 0.7.6 Affected: 0.7.7 Affected: 0.7.8 Affected: 0.7.9 Affected: 0.7.10 Affected: 0.7.11 Affected: 0.7.12 Affected: 0.7.13 Affected: 0.7.14 Affected: 0.7.15 Affected: 0.7.16 Affected: 0.7.17 Affected: 0.7.18 Affected: 0.7.19 Affected: 0.7.20 Affected: 0.7.21 Affected: 0.7.22 Affected: 0.7.23 Affected: 0.7.24 Affected: 0.7.25 Affected: 0.7.26 Affected: 0.7.27 Affected: 0.7.28 Affected: 0.7.29 Affected: 0.7.30 Affected: 0.7.31 Affected: 0.7.32 Affected: 0.7.33 Affected: 0.7.34 Affected: 0.7.35 Affected: 0.7.36 Affected: 0.7.37 Affected: 0.7.38 Affected: 0.7.39 Affected: 0.7.40 Affected: 0.7.41 Affected: 0.7.42 Affected: 0.7.43 Affected: 0.7.44 Affected: 0.7.45 Affected: 0.7.46 Affected: 0.7.47 Affected: 0.7.48 Affected: 0.7.49 Affected: 0.7.50 Affected: 0.7.51 Affected: 0.7.52 Affected: 0.7.53 Affected: 0.7.54 Affected: 0.7.55 Affected: 0.7.56 Affected: 0.7.57 Affected: 0.7.58 cpe:2.3:a:boazsegev:facil.io:*:*:*:*:*:*:*:* |
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CVE-2026-16632 (GCVE-0-2026-16632)
Vulnerability from nvd – Published: 2026-07-22 23:45 – Updated: 2026-07-23 15:36
VLAI
EPSS
VEX
Title
boazsegev facil.io WebSocket Frame websocket_parser.h websocket_on_protocol_error input validation
Summary
A flaw has been found in boazsegev facil.io up to 0.7.4. Affected is the function websocket_on_protocol_error in the library lib/facil/http/parsers/websocket_parser.h of the component WebSocket Frame Parser. This manipulation of the argument on_message causes improper input validation. The attack can be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/382382 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/382382/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16632 | third-party-advisory |
| https://vuldb.com/submit/860585 | third-party-advisory |
| https://github.com/boazsegev/facil.io/issues/169 | exploitissue-tracking |
| https://github.com/boazsegev/facil.io/ | product |
Impacted products
Credits
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CVE-2026-41146 (GCVE-0-2026-41146)
Vulnerability from nvd – Published: 2026-04-22 01:07 – Updated: 2026-04-22 13:09
VLAI
EPSS
VEX
Title
facil.io and downstream iodine ruby gem vulnerable to uncontrolled resource consumption and loop with unreachable exit condition
Summary
facil.io is a C micro-framework for web applications. Prior to commit 5128747363055201d3ecf0e29bf0a961703c9fa0, `fio_json_parse` can enter an infinite loop when it encounters a nested JSON value starting with `i` or `I`. The process spins in user space and pegs one CPU core at ~100% instead of returning a parse error. Because `iodine` vendors the same parser code, the issue also affects `iodine` when it parses attacker-controlled JSON. The smallest reproducer I found is `[i`. The quoted-value form that originally exposed the issue, `[""i`, reaches the same bug because the parser tolerates missing commas and then treats the trailing `i` as the start of another value. Commit 5128747363055201d3ecf0e29bf0a961703c9fa0 fixes the issue.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/boazsegev/facil.io/security/ad… | x_refsource_CONFIRM |
| https://github.com/boazsegev/facil.io/commit/5128… | x_refsource_MISC |
Impacted products
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CVE-2024-22050 (GCVE-0-2024-22050)
Vulnerability from nvd – Published: 2024-01-04 20:24 – Updated: 2026-07-14 22:54
VLAI
EPSS
VEX
Title
Iodine Static File Server Path Traversal Vulnerability
Summary
Path traversal in the static file service in Iodine less than 0.7.33 allows an unauthenticated, remote attacker to read files outside the public folder via malicious URLs.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/boazsegev/iodine/security/advi… | vendor-advisory |
| https://github.com/boazsegev/iodine/commit/555823… | patch |
| https://github.com/advisories/GHSA-85rf-xh54-whp3 | vendor-advisory |
| https://vulncheck.com/advisories/vc-advisory-GHSA… | third-party-advisory |
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CVE-2026-66731 (GCVE-0-2026-66731)
Vulnerability from cvelistv5 – Published: 2026-07-27 16:57 – Updated: 2026-07-27 17:30 X_Open Source
VLAI
EPSS
VEX
Title
facil.io 0.7.5 - 0.7.6 HTTP/1.1 Chunked Transfer Encoding Parser Crash DoS
Summary
facil.io 0.7.5 through 0.7.6 contains a denial-of-service vulnerability in the HTTP/1.1 chunked transfer encoding parser that allows unauthenticated remote attackers to crash the server by sending a negative chunk size value. Attackers can send a single POST request with a Transfer-Encoding: chunked header containing a leading minus sign in the chunk size field, causing the parser in http1_parser.h to compute a large positive integer from the negated value, corrupting internal state and moving the read pointer into unmapped memory resulting in a fault.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/theopaid/Negative-Chunk-Size-P… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/facil-io-htt… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-66730 (GCVE-0-2026-66730)
Vulnerability from cvelistv5 – Published: 2026-07-27 16:55 – Updated: 2026-07-27 18:20 X_Open Source
VLAI
EPSS
VEX
Title
facil.io 0.6.0 - 0.7.6 Infinite Loop DoS via Multipart MIME Body Parser
Summary
facil.io 0.6.0 through 0.7.6 contains a denial-of-service vulnerability in the multipart body parser that allows an unauthenticated remote attacker to permanently freeze worker processes at 100% CPU by sending a multipart/form-data request with a partial closing boundary. The missing progress guard in the parser loop causes http_mime_parse to return 0 bytes consumed without setting done or error flags, causing the calling loop to re-invoke the parser on the same buffer indefinitely, exhausting all workers and permanently disabling the server until manually restarted.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/theopaid/Infinite-Loop-DoS-in-… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/facil-io-inf… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-66729 (GCVE-0-2026-66729)
Vulnerability from cvelistv5 – Published: 2026-07-27 16:52 – Updated: 2026-07-27 17:54 X_Open Source
VLAI
EPSS
VEX
Title
facil.io 0.6.0 - 0.7.6 Integer Underflow DoS via Multipart MIME Body Parser
Summary
facil.io 0.6.0 through 0.7.6 contains an integer underflow vulnerability in the multipart MIME body parser that allows unauthenticated remote attackers to crash the server process by sending a crafted Content-Disposition header with an empty field name. Attackers can trigger a uint32_t wraparound in http_mime_parser.h causing an out-of-bounds memory read past the name pointer, resulting in a bus fault that crashes the handling worker with a single POST request.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/theopaid/Out-of-Bounds-Read-in… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/facil-io-int… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-16653 (GCVE-0-2026-16653)
Vulnerability from cvelistv5 – Published: 2026-07-23 01:15 – Updated: 2026-07-23 16:06
VLAI
EPSS
VEX
Title
boazsegev facil.io Public Folder http.c http_sendfile2 path traversal
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Path Traversal
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/382396 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/382396/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16653 | third-party-advisory |
| https://vuldb.com/submit/860587 | third-party-advisory |
| https://github.com/boazsegev/facil.io/issues/170 | exploitissue-tracking |
| https://github.com/boazsegev/facil.io/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| boazsegev | facil.io |
Affected:
0.7.0
Affected: 0.7.1 Affected: 0.7.2 Affected: 0.7.3 Affected: 0.7.4 Affected: 0.7.5 Affected: 0.7.6 Affected: 0.7.7 Affected: 0.7.8 Affected: 0.7.9 Affected: 0.7.10 Affected: 0.7.11 Affected: 0.7.12 Affected: 0.7.13 Affected: 0.7.14 Affected: 0.7.15 Affected: 0.7.16 Affected: 0.7.17 Affected: 0.7.18 Affected: 0.7.19 Affected: 0.7.20 Affected: 0.7.21 Affected: 0.7.22 Affected: 0.7.23 Affected: 0.7.24 Affected: 0.7.25 Affected: 0.7.26 Affected: 0.7.27 Affected: 0.7.28 Affected: 0.7.29 Affected: 0.7.30 Affected: 0.7.31 Affected: 0.7.32 Affected: 0.7.33 Affected: 0.7.34 Affected: 0.7.35 Affected: 0.7.36 Affected: 0.7.37 Affected: 0.7.38 Affected: 0.7.39 Affected: 0.7.40 Affected: 0.7.41 Affected: 0.7.42 Affected: 0.7.43 Affected: 0.7.44 Affected: 0.7.45 Affected: 0.7.46 Affected: 0.7.47 Affected: 0.7.48 Affected: 0.7.49 Affected: 0.7.50 Affected: 0.7.51 Affected: 0.7.52 Affected: 0.7.53 Affected: 0.7.54 Affected: 0.7.55 Affected: 0.7.56 Affected: 0.7.57 Affected: 0.7.58 cpe:2.3:a:boazsegev:facil.io:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-16632 (GCVE-0-2026-16632)
Vulnerability from cvelistv5 – Published: 2026-07-22 23:45 – Updated: 2026-07-23 15:36
VLAI
EPSS
VEX
Title
boazsegev facil.io WebSocket Frame websocket_parser.h websocket_on_protocol_error input validation
Summary
A flaw has been found in boazsegev facil.io up to 0.7.4. Affected is the function websocket_on_protocol_error in the library lib/facil/http/parsers/websocket_parser.h of the component WebSocket Frame Parser. This manipulation of the argument on_message causes improper input validation. The attack can be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/382382 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/382382/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16632 | third-party-advisory |
| https://vuldb.com/submit/860585 | third-party-advisory |
| https://github.com/boazsegev/facil.io/issues/169 | exploitissue-tracking |
| https://github.com/boazsegev/facil.io/ | product |
Impacted products
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CVE-2026-41146 (GCVE-0-2026-41146)
Vulnerability from cvelistv5 – Published: 2026-04-22 01:07 – Updated: 2026-04-22 13:09
VLAI
EPSS
VEX
Title
facil.io and downstream iodine ruby gem vulnerable to uncontrolled resource consumption and loop with unreachable exit condition
Summary
facil.io is a C micro-framework for web applications. Prior to commit 5128747363055201d3ecf0e29bf0a961703c9fa0, `fio_json_parse` can enter an infinite loop when it encounters a nested JSON value starting with `i` or `I`. The process spins in user space and pegs one CPU core at ~100% instead of returning a parse error. Because `iodine` vendors the same parser code, the issue also affects `iodine` when it parses attacker-controlled JSON. The smallest reproducer I found is `[i`. The quoted-value form that originally exposed the issue, `[""i`, reaches the same bug because the parser tolerates missing commas and then treats the trailing `i` as the start of another value. Commit 5128747363055201d3ecf0e29bf0a961703c9fa0 fixes the issue.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/boazsegev/facil.io/security/ad… | x_refsource_CONFIRM |
| https://github.com/boazsegev/facil.io/commit/5128… | x_refsource_MISC |
Impacted products
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CVE-2024-22050 (GCVE-0-2024-22050)
Vulnerability from cvelistv5 – Published: 2024-01-04 20:24 – Updated: 2026-07-14 22:54
VLAI
EPSS
VEX
Title
Iodine Static File Server Path Traversal Vulnerability
Summary
Path traversal in the static file service in Iodine less than 0.7.33 allows an unauthenticated, remote attacker to read files outside the public folder via malicious URLs.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/boazsegev/iodine/security/advi… | vendor-advisory |
| https://github.com/boazsegev/iodine/commit/555823… | patch |
| https://github.com/advisories/GHSA-85rf-xh54-whp3 | vendor-advisory |
| https://vulncheck.com/advisories/vc-advisory-GHSA… | third-party-advisory |
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