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Path TraversalWeakness · CWE-22

CVE-2026-54760

CRITICAL · 9.3 CVSS v4.0 Published 2026-07-10
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click 6 weeks old

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Langroid is a framework for building large-language-model-powered applications. Prior to version 0.65.1, the `SQLChatAgent` SQL-injection mitigation, with default `allow_dangerous_operations=False`, combines a raw-text regex blocklist (`_DANGEROUS_SQL_PATTERNS`) with a `sqlglot` SELECT-only statement allowlist. The blocklist entries that target callable functions require the function name to be immediately followed by `\s*\(`. PostgreSQL accepts the same call with the name separated from `(` by a quoted identifier, an inline comment, or schema qualification. These forms evade the regex, still parse as `SELECT`, and execute the same PostgreSQL function. This restores the `pg_read_file` server-side file-read primitive that the prior CVE-2026-25879 / GHSA-pmch-g965-grmr fix was meant to block: the parent advisory fixed a missing `pg_read_file` blocklist entry, while this report shows that the added regex is bypassable. Version 0.65.1 fixes the issue.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Langroid's SQLChatAgent uses a regex blocklist combined with a sqlglot SELECT-only allowlist to mitigate SQL injection. However, the blocklist regex requires dangerous functions like pg_read_file to be immediately followed by `\(`, which can be bypassed in PostgreSQL using quoted identifiers, inline comments, or schema qualification between the function name and parenthesis. This allows arbitrary file reads via pg_read_file despite the intended mitigation from CVE-2026-25879.

MitigationUpgrade to Langroid version 0.65.1 or later which fixes the regex bypass vulnerability.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
Authentication
X
User interaction
None
Scope
X

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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:X

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Langroid version
    Run `pip show langroid` or check your requirements file to find the installed version of the langroid package
    Affected if The installed version is earlier than 0.65.1 and the SQLChatAgent component is in use
  2. Locate SQLChatAgent usage
    Search your codebase for imports of `SQLChatAgent` or `from langroid.agent.special.sql_chat_agent import SQLChatAgent`
    Affected if SQLChatAgent is imported or instantiated in your application code
  3. Confirm PostgreSQL backend
    Check your application configuration or database connection settings to identify if PostgreSQL is the database backend used with SQLChatAgent
    Affected if PostgreSQL is configured as the database for SQLChatAgent; other databases are not affected by this specific pg_read_file bypass
  4. Test for vulnerable regex pattern in SQL input
    If you can test the agent, attempt a SQL query using the bypass techniques: `pg_read_file/**/()` or `pg_read_file""(` with inline comments or quoted identifiers between function name and opening parenthesis
    Affected if The agent accepts and executes SQL containing dangerous functions with bypass techniques between the function name and parentheses, indicating the blocklist regex is ineffective

You are affected if Langroid version is earlier than 0.65.1, SQLChatAgent is active, and PostgreSQL is the database backend, allowing the regex blocklist to be bypassed for arbitrary file reads.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade to Langroid version 0.65.1 or later which fixes the regex bypass vulnerability.

Recommended fix High confidence

0.65.1

  1. Upgrade Langroid to version 0.65.1 or later to address the regex bypass vulnerability in SQLChatAgent's SQL-injection mitigation

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation1.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
5.0 hours of engineering $860
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-54760 in production — separate from our analysis above.

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What this is

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What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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