CVE-2026-34371: LibreChat is a ChatGPT clone with additional features

Q: How do I fix CVE-2026-34371?

librechat: upgrade to 0.8.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-34371 being exploited?

CVE-2026-34371 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-34371 affect?

CVE-2026-34371 affects librechat. Severity is medium (CVSS 6.3). LibreChat is a ChatGPT clone with additional features. Prior to 0.8.4, LibreChat trusts the name field returned by the execute_code sandbox when persisting code-generated artifacts. On deployments using the default local file strategy, a ma

Q: How urgent is CVE-2026-34371?

Priority 31/100. Public exploit reference

Routine

MEDIUM 6.3UPGRADE

CVE-2026-34371 is a medium-severity flaw (CVSS 6.3) affecting librechat. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

LibreChat is a ChatGPT clone with additional features. Prior to 0.8.4, LibreChat trusts the name field returned by the execute_code sandbox when persisting code-generated artifacts. On deployments using the default local file strategy, a malicious artifact filename containing traversal sequences (for example, ../../../../../app/client/dist/poc.txt) is concatenated into the server-side destination path and written with fs.writeFileSync() without s

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 83%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-04-07
Last modified	2026-07-24

Publisher (CNA): GitHub, Inc. · Vendor: librechat

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-07 22:16 UTCPublished CVE record published
2026-07-24 22:10 UTCUpdated Record last modified

librechat librechat UPGRADE

Affected: < 0.8.4

Fixed in: 0.8.4

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 0.8.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade librechat

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade librechat

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-34371?

librechat: upgrade to 0.8.4. Exact commands for each OS are on this page.

Is CVE-2026-34371 being exploited?

CVE-2026-34371 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-2026-34371 affect?

CVE-2026-34371 affects librechat. Severity is medium (CVSS 6.3). LibreChat is a ChatGPT clone with additional features. Prior to 0.8.4, LibreChat trusts the name field returned by the execute_code sandbox when persisting code-generated artifacts. On deployments using the default local file strategy, a ma

How urgent is CVE-2026-34371?

Priority 31/100. Public exploit reference

Software pages

OpenAI ChatGPT vulnerabilities

Related CVEs

CVE-2026-31943 HIGH 8.5 UPGRADE LibreChat is a ChatGPT clone with additional features
CVE-2026-31945 HIGH 7.7 DOWNGRADE LibreChat is a ChatGPT clone with additional features
CVE-2026-31951 MEDIUM 6.8 UPGRADE LibreChat is a ChatGPT clone with additional features
CVE-2026-31950 MEDIUM 5.3 DOWNGRADE LibreChat is a ChatGPT clone with additional features
CVE-2026-54033 HIGH 7.7 UPGRADE LibreChat is an enhanced ChatGPT clone that supports multiple AI providers

References

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