CVE-2025-48985

A vulnerability in Vercel’s AI SDK has been fixed in versions 5.0.52, 5.1.0-beta.9, and 6.0.0-beta. This issue may have allowed users to bypass filetype whitelists when uploading files. All users are encouraged to upgrade. More details: https://vercel.com/changelog/cve-2025-48985-input-validation-bypass-on-ai-sdk

Published: 2025-11-07 Last update: 2026-02-04 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-48985 is rated Low Risk (19.7/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.23%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-48985

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.09% 0.23% +0.14%
2 2026-04-05 0.17% 0.09% -0.07%
3 2026-03-13 — 0.17% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-48985

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.7 3.1 LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.2 1.4 [email protected]
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]

Weakness enumeration for CVE-2025-48985

GitHub Security Advisory for CVE-2025-48985

GHSA-rwvc-j5jr-mgvh · Severity: low · Ecosystem: npm — Vercel’s AI SDK's filetype whitelists can be bypassed when uploading files

Affected software / configurations for CVE-2025-48985

Vendor Product Version Raw CPE
vercel ai < 5.0.52 cpe:2.3:a:vercel:ai:*:*:*:*:*:*:*:*
vercel ai 5.1.0 cpe:2.3:a:vercel:ai:5.1.0:beta0:*:*:*:*:*:*
vercel ai 5.1.0 cpe:2.3:a:vercel:ai:5.1.0:beta1:*:*:*:*:*:*
vercel ai 5.1.0 cpe:2.3:a:vercel:ai:5.1.0:beta2:*:*:*:*:*:*
vercel ai 5.1.0 cpe:2.3:a:vercel:ai:5.1.0:beta3:*:*:*:*:*:*
vercel ai 5.1.0 cpe:2.3:a:vercel:ai:5.1.0:beta4:*:*:*:*:*:*
vercel ai 5.1.0 cpe:2.3:a:vercel:ai:5.1.0:beta5:*:*:*:*:*:*
vercel ai 5.1.0 cpe:2.3:a:vercel:ai:5.1.0:beta6:*:*:*:*:*:*
vercel ai 5.1.0 cpe:2.3:a:vercel:ai:5.1.0:beta7:*:*:*:*:*:*
vercel ai 5.1.0 cpe:2.3:a:vercel:ai:5.1.0:beta8:*:*:*:*:*:*

References for CVE-2025-48985

cvelogic Threat Intelligence