جزئیات آسیب‌پذیری
CVE-2026-77866
SSRF protection bypass in safeurl via IPv6 addresses and unresolvable hosts
شرح رسمی (انگلیسی)
Server-Side Request Forgery (SSRF) vulnerability in Slab safeurl allows an attacker who controls a validated URL to reach internal network destinations the library is configured to block. Only IPv4 addresses are matched against the reserved ranges and the blocklist. Every other address is treated as matching nothing, so a destination that is rejected in its IPv4 form is accepted when written as an IPv6 address, IPv6 entries in the blocklist never match, and a host that resolves to no IPv4 address is accepted regardless of where it points. Deployments that rely on the allowlist instead are unaffected, because there an unmatched address is rejected. This issue affects safeurl: from 0.1.0 onward.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 9.0بحرانی | 4.0 | CVEProject cvelistV5 (CNA) (EEF) | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N |
محصولات آسیب‌پذیر
| فروشنده | محصول | نسخه‌ها | منبع |
|---|---|---|---|
| Slab | safeurl | 0.1.0 ≤ v | CVEProject cvelistV5 (CNA) |
| Slab | safeurl | feabbd0a13f83028ab24b71710526e9da9841f70 ≤ v | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۳- https://cna.erlef.org/cves/CVE-2026-77866.html relatedthird-party-advisory
- https://osv.dev/vulnerability/EEF-CVE-2026-77866 related
- https://github.com/slab/safeurl-elixir/commit/feabbd0a13f83028ab24b71710526e9da9841f70 related
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۶/۲۴
- آخرین به‌روزرسانی
- ۱۴۰۵/۰۶/۳۰
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- EEF
پیش‌بینی بهره‌برداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- خیر
- وضعیت بهره‌برداری
- ندارد
- اثر فنی
- جزئی
ضعف‌ها (CWE)
- CWE-918Server-Side Request Forgery (SSRF)
- CWE-636Not Failing Securely ('Failing Open')