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defu: Prototype pollution via `__proto__` key in defaults argument

🗓️ 04 Apr 2026 06:17:53Reported by GitHub Advisory DatabaseType 
github
 github🔗 github.com👁 6 Views

Defu prototype pollution via __proto__ in defaults; unsanitized input can override defaults.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
Chainguard		CVE-2026-35209 vulnerabilities
6 Apr 202619:31
–cgr
Circl		CVE-2026-35209
6 Apr 202618:09
–circl
CNNVD		defu 安全漏洞
6 Apr 202600:00
–cnnvd
CVE		CVE-2026-35209
6 Apr 202617:26
–cve
Cvelist		CVE-2026-35209 defu: Prototype pollution via `__proto__` key in defaults argument
6 Apr 202617:26
–cvelist
NVD		CVE-2026-35209
6 Apr 202618:16
–nvd
OSV		CGA-G5J4-66JR-WMXJ
6 Apr 202615:30
–osv
OSV		CLEANSTART-2026-CE10526 Security fixes for CVE-2025-64756, CVE-2025-69873, CVE-2026-1525, CVE-2026-1526, CVE-2026-1527, CVE-2026-1528, CVE-2026-2229, CVE-2026-2327, CVE-2026-23745, CVE-2026-2391, CVE-2026-24842, CVE-2026-25128, CVE-2026-25547, CVE-2026-2581, CVE-2026-25896, CVE-2026-26278, CVE-2026-26960, CVE-2026-27143, CVE-2026-27144, CVE-2026-27601, CVE-2026-27903, CVE-2026-27904, CVE-2026-27942, CVE-2026-28292, CVE-2026-2950, CVE-2026-29786, CVE-2026-31802, CVE-2026-32141, CVE-2026-32280, CVE-2026-32281, CVE-2026-32282, CVE-2026-32283, CVE-2026-32289, CVE-2026-33036, CVE-2026-33750, CVE-2026-33810, CVE-2026-35209, CVE-2026-42338, CVE-2026-4800, CVE-2026-6951, ghsa-23c5-xmqv-rm74, ghsa-25h7-pfq9-p65f, ghsa-2g4f-4pwh-qvx6, ghsa-2mjp-6q6p-2qxm, ghsa-34x7-hfp2-rc4v, ghsa-37qj-frw5-hhjh, ghsa-38c4-r59v-3vqw, ghsa-3ppc-4f35-3m26, ghsa-3v7f-55p6-f55p, ghsa-4992-7rv2-5pvq, ghsa-5j98-mcp5-4vw2, ghsa-737v-mqg7-c878, ghsa-73rr-hh4g-fpgx, ghsa-7h2j-956f-4vf2, ghsa-7r86-cg39-jmmj, ghsa-83g3-92jg-28cx, ghsa-8gc5-j5rx-235r, ghsa-8qq5-rm4j-mr97, ghsa-8wc6-vgrq-x6cf, ghsa-9ppj-qmqm-q256, ghsa-c2c7-rcm5-vvqj, ghsa-f23m-r3pf-42rh, ghsa-f269-vfmq-vjvj, ghsa-f886-m6hf-6m8v, ghsa-fj3w-jwp8-x2g3, ghsa-hffm-xvc3-vprc, ghsa-jmr7-xgp7-cmfj, ghsa-m7jm-9gc2-mpf2, ghsa-phc3-fgpg-7m6h, ghsa-qffp-2rhf-9h96, ghsa-qpx9-hpmf-5gmw, ghsa-r275-fr43-pm7q, ghsa-r5fr-rjxr-66jc, ghsa-r6q2-hw4h-h46w, ghsa-v2v4-37r5-5v8g, ghsa-v3rj-xjv7-4jmq, ghsa-v9p9-hfj2-hcw8, ghsa-vrm6-8vpv-qv8q, ghsa-w7fw-mjwx-w883, ghsa-xq3m-2v4x-88gg applied in versions: 43.123.6-r0, 43.123.8-r1, 43.123.8-r2, 43.123.8-r3, 43.4.4-r0
18 May 202613:17
–osv
OSV		CLEANSTART-2026-NB51079 Security fixes for CVE-2025-64756, CVE-2025-69873, CVE-2026-1525, CVE-2026-1526, CVE-2026-1527, CVE-2026-1528, CVE-2026-2229, CVE-2026-2327, CVE-2026-23745, CVE-2026-2391, CVE-2026-24842, CVE-2026-25128, CVE-2026-25547, CVE-2026-2581, CVE-2026-25896, CVE-2026-26278, CVE-2026-26960, CVE-2026-27143, CVE-2026-27144, CVE-2026-27601, CVE-2026-27903, CVE-2026-27904, CVE-2026-27942, CVE-2026-28292, CVE-2026-2950, CVE-2026-29786, CVE-2026-31802, CVE-2026-32141, CVE-2026-32280, CVE-2026-32281, CVE-2026-32282, CVE-2026-32283, CVE-2026-32289, CVE-2026-33036, CVE-2026-33750, CVE-2026-33810, CVE-2026-35209, CVE-2026-42338, CVE-2026-4800, CVE-2026-6951, ghsa-23c5-xmqv-rm74, ghsa-25h7-pfq9-p65f, ghsa-2g4f-4pwh-qvx6, ghsa-2mjp-6q6p-2qxm, ghsa-34x7-hfp2-rc4v, ghsa-37qj-frw5-hhjh, ghsa-38c4-r59v-3vqw, ghsa-3ppc-4f35-3m26, ghsa-3v7f-55p6-f55p, ghsa-4992-7rv2-5pvq, ghsa-5j98-mcp5-4vw2, ghsa-737v-mqg7-c878, ghsa-73rr-hh4g-fpgx, ghsa-7h2j-956f-4vf2, ghsa-7r86-cg39-jmmj, ghsa-83g3-92jg-28cx, ghsa-8gc5-j5rx-235r, ghsa-8qq5-rm4j-mr97, ghsa-8wc6-vgrq-x6cf, ghsa-9ppj-qmqm-q256, ghsa-c2c7-rcm5-vvqj, ghsa-f23m-r3pf-42rh, ghsa-f269-vfmq-vjvj, ghsa-f886-m6hf-6m8v, ghsa-fj3w-jwp8-x2g3, ghsa-hffm-xvc3-vprc, ghsa-jmr7-xgp7-cmfj, ghsa-m7jm-9gc2-mpf2, ghsa-phc3-fgpg-7m6h, ghsa-qffp-2rhf-9h96, ghsa-qpx9-hpmf-5gmw, ghsa-r275-fr43-pm7q, ghsa-r5fr-rjxr-66jc, ghsa-r6q2-hw4h-h46w, ghsa-v2v4-37r5-5v8g, ghsa-v3rj-xjv7-4jmq, ghsa-v9p9-hfj2-hcw8, ghsa-vrm6-8vpv-qv8q, ghsa-w7fw-mjwx-w883, ghsa-xq3m-2v4x-88gg applied in versions: 43.123.6-r0, 43.123.8-r1, 43.123.8-r2, 43.123.8-r3, 43.4.4-r0
18 May 202613:17
–osv
OSV		GHSA-737V-MQG7-C878 defu: Prototype pollution via `__proto__` key in defaults argument
4 Apr 202606:17
–osv
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unjsdefuRange≤6.1.4npm

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06 Apr 2026 23:42Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
EPSS0.00018
SSVC
CWE-1321
prototype pollutiondefudefaultsunsanitized inputobject spreadvulnerable versions
6