NPM: Multer vulnerable to Denial of Service via deeply nested field names

NPM: Multer vulnerable to Denial of Service via deeply nested field names vulnerability discovered by ? in WordPress Npm multer versions = 1.0.0, 2.2.0...

EUVD-2026-36726

Multer vulnerable to Denial of Service via deeply nested field names...

02url-querystring-http (>=1.0.1, <=1.0.4), 1-0-5-hai-aage-dekhte-hein-kya-aat-hai (>=1.0.5, <=1.0.6) +12641 more potentially affected by CVE-2026-5079 via multer (>=1.0.3, <=2.1.1)

multer NPM version =1.0.3, =1.0.1, =1.0.5, =2.0.0, =1.0.0, =1.0.0, =1.0.0, =0.0.1, =1.0.0, =1.0.3 - 6e-alpha-backend-admin 1.0.0 and more Source cves: CVE-2026-5079 Source advisory: OSV:GHSA-72GW-MP4G-V24J...

GHSA-72GW-MP4G-V24J Multer vulnerable to Denial of Service via deeply nested field names

Impact Multer is vulnerable to a Denial of Service DoS via deeply nested field names in multipart form data. The append-field dependency parses bracket notation in field names e.g., abc with no limit on nesting depth, allowing an attacker to force allocation of deeply nested object structures tha...

Multer vulnerable to Denial of Service via deeply nested field names

Impact Multer is vulnerable to a Denial of Service DoS via deeply nested field names in multipart form data. The append-field dependency parses bracket notation in field names e.g., abc with no limit on nesting depth, allowing an attacker to force allocation of deeply nested object structures tha...

EUVD-2026-36728

Multer vulnerable to Denial of Service via incomplete cleanup of aborted uploads...

NPM: Multer vulnerable to Denial of Service via incomplete cleanup of aborted uploads

NPM: Multer vulnerable to Denial of Service via incomplete cleanup of aborted uploads vulnerability discovered by ? in WordPress Npm multer versions = 2.0.0-alpha.1, 2.2.0...

4591-libs (>=0.0.1, <=0.2.0), @10abdullahbutt/nestjs-boilerplate (0.0.1) +1553 more potentially affected by CVE-2026-5038 via multer (>=2.0.0, <=2.1.1)

multer NPM version =2.0.0, =0.0.1, =0.0.1-alpha.1, =0.0.1-alpha.9, =0.0.0-alpha.119, =1.2.1-dev.3, =0.0.1, =1.0.0, =0.1.1, =0.0.1, =0.0.1, =0.0.1, =0.1.0, =0.0.2, =0.0.10, =0.6.2 and more Source cves: CVE-2026-5038 Source advisory: OSV:GHSA-3P4H-7M6X-2HCM...

Multer vulnerable to Denial of Service via incomplete cleanup of aborted uploads

Impact A vulnerability in Multer allows an attacker to trigger a Denial of Service DoS by aborting or sending malformed multipart uploads, causing orphaned partial files to accumulate on disk when using diskStorage. Patches Users should upgrade to 2.2.0, 3.0.0-alpha.2 or higher Workarounds None...

GHSA-3P4H-7M6X-2HCM Multer vulnerable to Denial of Service via incomplete cleanup of aborted uploads

Impact A vulnerability in Multer allows an attacker to trigger a Denial of Service DoS by aborting or sending malformed multipart uploads, causing orphaned partial files to accumulate on disk when using diskStorage. Patches Users should upgrade to 2.2.0, 3.0.0-alpha.2 or higher Workarounds None...

Incomplete Cleanup

Overview Affected versions of this package are vulnerable to Incomplete Cleanup in the diskStorage function. An attacker can exhaust disk space by repeatedly initiating and aborting multipart uploads, causing orphaned partial files to accumulate on disk. Remediation Upgrade multer to version 2.2....

4591-libs (>=0.0.1, <=0.2.0), @10abdullahbutt/nestjs-boilerplate (0.0.1) +1553 more potentially affected by CVE-2026-5038 via multer (>=2.0.0, <=2.1.1)

multer NPM version =2.0.0, =0.0.1, =0.0.1-alpha.1, =0.0.1-alpha.9, =0.0.0-alpha.119, =1.2.1-dev.3, =0.0.1, =1.0.0, =0.1.1, =0.0.1, =0.0.1, =0.0.1, =0.1.0, =0.0.2, =0.0.10, =0.6.2 and more Source cves: CVE-2026-5038 Source advisory: SNYK:JS-MULTER-17342516...

org.webjars.npm:nestjs__platform-express (>=8.4.7, <=9.0.0-next.2) potentially affected by CVE-2026-5038 via org.webjars.npm:multer (1.4.4-lts.1)

org.webjars.npm:multer MAVEN version 1.4.4-lts.1 is affected by a known vulnerability. The following packages have a transitive dependency on org.webjars.npm:multer and may be impacted: - org.webjars.npm:nestjsplatform-express =8.4.7, =9.0.0-next.2 Source cves: CVE-2026-5038 Source advisory:...

CVE-2026-5038

Impact: multer versions 2.0.0-alpha.1 through 2.1.1 and 3.0.0-alpha.1 are vulnerable to a Denial of Service when using diskStorage. Aborted or malformed multipart uploads leave orphaned partial files on disk because the Readable.pipe call does not propagate the stream destroy signal to the...

Uncontrolled Recursion

Overview Affected versions of this package are vulnerable to Uncontrolled Recursion via deeply nested field names in multipart form data. An attacker can exhaust CPU and memory resources by sending a single HTTP request with a crafted multipart body containing excessively nested field names...

org.webjars.npm:nestjs__platform-express (>=8.4.7, <=9.0.0-next.2) potentially affected by CVE-2026-5079 via org.webjars.npm:multer (1.4.4-lts.1)

org.webjars.npm:multer MAVEN version 1.4.4-lts.1 is affected by a known vulnerability. The following packages have a transitive dependency on org.webjars.npm:multer and may be impacted: - org.webjars.npm:nestjsplatform-express =8.4.7, =9.0.0-next.2 Source cves: CVE-2026-5079 Source advisory:...

02url-querystring-http (>=1.0.1, <=1.0.4), 1-0-5-hai-aage-dekhte-hein-kya-aat-hai (>=1.0.5, <=1.0.6) +12641 more potentially affected by CVE-2026-5079 via multer (>=1.0.3, <=2.1.1)

multer NPM version =1.0.3, =1.0.1, =1.0.5, =2.0.0, =1.0.0, =1.0.0, =1.0.0, =0.0.1, =1.0.0, =1.0.3 - 6e-alpha-backend-admin 1.0.0 and more Source cves: CVE-2026-5079 Source advisory: SNYK:JS-MULTER-17342512...

Uncontrolled Recursion

Overview Affected versions of this package are vulnerable to Uncontrolled Recursion via deeply nested field names in multipart form data. An attacker can exhaust CPU and memory resources by sending a single HTTP request with a crafted multipart body containing excessively nested field names...

CVE-2026-5038 multer vulnerable to Denial of Service via incomplete cleanup of aborted uploads

Impact: multer versions 2.0.0-alpha.1 through 2.1.1 and 3.0.0-alpha.1 are vulnerable to a Denial of Service when using diskStorage. Aborted or malformed multipart uploads leave orphaned partial files on disk because the Readable.pipe call does not propagate the stream destroy signal to the...

CVE-2026-5038

MULTER CVE-2026-5038 affects multer’s diskStorage: versions 2.0.0-alpha.1–2.1.1 and 3.0.0-alpha.1 are vulnerable. The root cause is that Readable.pipe() does not propagate the stream destroy signal to the underlying fs.WriteStream, allowing aborted or malformed multipart uploads to leave orphaned...