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Vulnerabilities

Security fix · CVE-2026-116693

dd-trace: ReDOS in URL query string obfuscation

Published Oct 27, 2026 · catalog updated Oct 27, 2026 · dd-trace: ReDOS in URL

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-116693. EPSS is 0.45%. Act only if a listed version of dd-trace: ReDOS in URL is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (dd-trace: ReDOS in URL).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.45%
Remediation
Version ranges on file
Affected products
npm dd-trace

### Summary A regular expression used to obfuscate URL query strings can consume excessive CPU when processing certain attacker-controlled input. This can stall request processing and cause denial of service in applications using affected HTTP tracing integrations. ### Details The default query-string obfuscation pattern can exhibit excessive backtracking. The pattern is applied synchronously when recording HTTP URL metadata, allowing query-string processing to occupy application resources for an extended period. As a workaround, set DD_TRACE_OBFUSCATION_QUERY_STRING_REGEXP to the fixed regex below, then restart the application. ### Proof of concept Detailed triggering inputs and reproduction steps are omitted from this advisory. The patched version includes regression coverage for the affected behavior. ### Impact Regular expression denial of service (ReDoS) affecting applications that process attacker-controlled URL query strings through the vulnerable obfuscation pattern. Successful exploitation can cause excessive CPU consumption, prolonged request latency, and service unavailability. The vulnerable processing is enabled by default for affected HTTP integrations that include query strings in URL span tags.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • npm dd-trace>= 2.0.0, < 5.131.1
  • npm dd-trace>= 6.0.0, < 6.20.1
  • npm dd-trace>=2.0.0 <5.131.1||>=6.0.0 <6.20.1

How to fix CVE-2026-116693

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-116693. EPSS is 0.45%. Act only if a listed version of dd-trace: ReDOS in URL is installed.

Which versions are affected?

Compare what you have installed with >= 2.0.0, < 5.131.1, >= 6.0.0, < 6.20.1, >=2.0.0 <5.131.1||>=6.0.0 <6.20.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-1333: Inefficient Regular Expression Complexity. EPSS 0.45%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 27, 2026 · GitHub Advisory Database

    Detected

    ### Summary A regular expression used to obfuscate URL query strings can consume excessive CPU when processing certain attacker-controlled input. This can stall request processing and cause denial of service in applications using affected HTTP tracing integrations. ### Details The default query-string obfuscation pattern can exhibit excessive backtracking. The pattern is applied synchronously when

  2. Oct 27, 2026 · GitHub Advisory Database

    Updated

    ### Summary A regular expression used to obfuscate URL query strings can consume excessive CPU when processing certain attacker-controlled input. This can stall request processing and cause denial of service in applications using affected HTTP tracing integrations. ### Details The default query-string obfuscation pattern can exhibit excessive backtracking. The pattern is applied synchronously when

Sources

  • CVE.orgVulnerability recordCVE-2026-116693

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-116693

    30-day exploitation probability 0.45%

    first.org
  • GitHub Advisory DatabasePackage advisoryGHSA-x94g-w73q-hpcw

    dd-trace: ReDOS in URL query string obfuscation

    github.com
  • GitLab Advisory DatabasePackage advisoryCVE-2026-116693

    A regular expression used to obfuscate URL query strings can consume excessive CPU when processing certain attacker-controlled input. This can stall request processing and cause denial of service in applications using affected HTTP tracing integrations.

    advisories.gitlab.com
  • GitLab Advisory DatabasePackage advisorynpm/dd-trace/CVE-2026-116693.yml

    A regular expression used to obfuscate URL query strings can consume + excessive CPU when processing certain attacker-controlled input. This can stall + request processing and cause denial of service in applications using affected HTTP + tracing integrations." +date: "2026-10-27" +pubdate: "2026-10-27" +affected_range: ">=2.0.0 =6.0.0 <6.20.1" +fixed_versions: +- "5.131.1" +- "6.20.1" +affected_ve

    gitlab.com

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 6, 2026
  • CVE.orgOct 28, 2026
  • GitLab Advisory DatabaseOct 28, 2026
  • GitLab Advisory DatabaseOct 28, 2026
  • GitHub Advisory DatabaseOct 28, 2026