A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/prox…
cve CVE-2026-105238 2 sources, 2 claims · Watch
NVD writes:
A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/proxy.ts of the component Proxy Fallback Handler. This manipulation of the argument x-base-url causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance. the claim
A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/proxy.ts of the component Proxy Fallback Handler. This manipulation of the argument x-base-url causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance. the claim
- Severity they disagree
- medium GitHub advisoriesHIGH NVD
- CVSS
- 7.3 GitHub advisories7.3 NVD
- Vendor
- ChatGPTNextWeb NVD
- Product
- NextChat NVD
- CWE
- CWE-918 GitHub advisoriesCWE-918 NVD
How far exploitation has got
- No public code known
- Proof of concept
- Proof of concept, verified
- A Metasploit module
- Exploited in the wild
- Used in ransomware campaigns
Timeline
| 2026-10-05 | first spoke of it: A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the... | GitHub advisories |
| 2026-10-05 | first spoke of it: A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/proxy.ts of the component Proxy Fallback Handler. This manipulation of the argument x-base-url causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance. | NVD |
A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/proxy.ts of the component Proxy Fallback Handler. This manipulation of the argument x-base-url causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance.
What it is to other things
In words only, so not counted until a person confirms one:
| affects | chatgptnextweb/nextchatNVD says “ChatGPTNextWeb · NextChat” |
| made_by | chatgptnextwebNVD says “ChatGPTNextWeb” |
Every value, with what each source said and its receipt
| Property | Source | Said | Means here | ||||
|---|---|---|---|---|---|---|---|
| Automatable automatable | NVD | yes An attacker can reliably run all of the kill chain's first four steps without a person. receipt
What the source handed over{
"cve": {
"affected": [
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:nextchat:nextchat:*:*:*:*:*:*:*:*"
],
"modules": [
"Proxy Fallback Handler"
],
"product": "NextChat",
"vendor": "ChatGPTNextWeb",
"versions": [
{
"status": "affected",
"version": "2.16.0"
},
{
"status": "affected",
"version": "2.16.1"
}
]
}
],
"source": "cna@vuldb.com"
}
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"value": "A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/proxy.ts of the component Proxy Fallback Handler. This manipulation of the argument x-base-url causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance."
}
],
"id": "CVE-2026-105238",
"lastModified": "2026-10-05T14:17:18.997",
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"references": [
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"url": "https://github.com/ChatGPTNextWeb/NextChat/"
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"source": "cna@vuldb.com",
"url": "https://github.com/ChatGPTNextWeb/NextChat/issues/6813"
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{
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"url": "https://github.com/ChatGPTNextWeb/NextChat/pull/6884"
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{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/cve/CVE-2026-105238"
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{
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{
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{
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"vulnStatus": "Received",
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}
} | — | ||||
| CVSS cvss | GitHub advisories | 7.3receipt
What the source handed over{
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"references": [
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"https://github.com/ChatGPTNextWeb/NextChat/issues/6813",
"https://github.com/ChatGPTNextWeb/NextChat/pull/6884",
"https://github.com/ChatGPTNextWeb/NextChat",
"https://vuldb.com/cve/CVE-2026-105238",
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"https://vuldb.com/vuln/413450",
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"url": "https://api.github.com/advisories/GHSA-rhg8-4whm-xj7w",
"vulnerabilities": [],
"withdrawn_at": null
} | — | ||||
| CVSS cvss | NVD | 7.3receipt
What the source handed over{
"cve": {
"affected": [
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:nextchat:nextchat:*:*:*:*:*:*:*:*"
],
"modules": [
"Proxy Fallback Handler"
],
"product": "NextChat",
"vendor": "ChatGPTNextWeb",
"versions": [
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"version": "2.16.0"
},
{
"status": "affected",
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}
]
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],
"source": "cna@vuldb.com"
}
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"cveTags": [],
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"value": "A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/proxy.ts of the component Proxy Fallback Handler. This manipulation of the argument x-base-url causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance."
}
],
"id": "CVE-2026-105238",
"lastModified": "2026-10-05T14:17:18.997",
"metrics": {
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} | — | ||||
| Cvss4 cvss4 | NVD | 5.5receipt
What the source handed over{
"cve": {
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{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:nextchat:nextchat:*:*:*:*:*:*:*:*"
],
"modules": [
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],
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"vendor": "ChatGPTNextWeb",
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}
],
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"vulnAvailabilityImpact": "LOW",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
},
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"references": [
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"source": "cna@vuldb.com",
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"url": "https://github.com/ChatGPTNextWeb/NextChat/issues/6813"
},
{
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}
} | — | ||||
| Cvss4 vector cvss4_vector | NVD | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xreceipt
What the source handed over{
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}
} | — | ||||
| CVSS vector cvss_vector | NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Lreceipt
What the source handed over{
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} | — | ||||
| CWE cwe | GitHub advisories | CWE-918receipt
What the source handed over{
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"withdrawn_at": null
} | — | ||||
| CWE cwe | NVD | CWE-918receipt
What the source handed over{
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{
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} | — | ||||
| Exploitation exploitation | NVD | poc A public proof of concept exists, or exploitation is trivial. receipt
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} | — | ||||
| Product product | NVD | NextChatreceipt
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} | — | ||||
| Severity severity conflict | GitHub advisories | mediumreceipt
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} | — | ||||
| Severity severity conflict | NVD | HIGH From 7.0 to 8.9. receipt
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| Status status | NVD | Receivedreceipt
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{
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}
} | — | ||||
| Technical impact technical_impact | NVD | partial The attacker gains limited control, or limited information. receipt
What the source handed over{
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"affected": [
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:nextchat:nextchat:*:*:*:*:*:*:*:*"
],
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],
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"vendor": "ChatGPTNextWeb",
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{
"status": "affected",
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}
]
}
],
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}
],
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{
"lang": "en",
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}
],
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} | — | ||||
| Vendor vendor | NVD | ChatGPTNextWebreceipt
What the source handed over{
"cve": {
"affected": [
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:nextchat:nextchat:*:*:*:*:*:*:*:*"
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"source": "cna@vuldb.com",
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]
}
} | — |