CVE-2026-7177: A security flaw has been discovered in ChatGPTNextWeb NextChat up to 2.16.1

This week

HIGH 7.3REMOTEDOWNGRADE

CVE-2026-7177 is a high-severity flaw (CVSS 7.3) affecting nextchat. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A security flaw has been discovered in ChatGPTNextWeb NextChat up to 2.16.1. Affected by this issue is the function proxyHandler of the file app/api/[provider]/[...path]/route.ts. The manipulation results in server-side request forgery. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 71%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-04-27
Last modified	2026-10-26

Publisher (CNA): VulDB · Vendor: nextchat

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-27 22:16 UTCPublished CVE record published
2026-10-26 22:10 UTCUpdated Record last modified

nextchat nextchat DOWNGRADE

Affected: 2.16.0 · 2.16.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.16.0

1. Check installed version

apt-cache policy nextchat || rpm -q nextchat || nextchat --version

2. No fixed release: DOWNGRADE to a release before 2.16.0 (Debian / Ubuntu)

apt-cache madison nextchat sudo apt install nextchat=<VERSION_BEFORE_2.16.0> sudo apt-mark hold nextchat

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list nextchat sudo dnf downgrade nextchat-<VERSION_BEFORE_2.16.0> sudo dnf versionlock add nextchat

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-7177?

nextchat: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-7177 being exploited?

CVE-2026-7177 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-7177 affect?

CVE-2026-7177 affects nextchat. Severity is high (CVSS 7.3). A security flaw has been discovered in ChatGPTNextWeb NextChat up to 2.16.1. Affected by this issue is the function proxyHandler of the file app/api/[provider]/[...path]/route.ts. The manipulation results in server-side request forgery. The

How urgent is CVE-2026-7177?

Priority 43/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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