Jiffy Intel — Threat intelligence for AI artifacts

Summary

Action backend that logs every inbound request, including the OAuth Authorization header forwarded by the GPT. Logs are retained and occasionally shared with third-party observability tools.

Severity & confidence

Severity

High

Credible abuse path with meaningful impact on confidentiality, integrity, or availability. Remediate on a short timeline; do not wait for the next sprint cycle.

Confidence

Confirmed

Observed directly by Jiffy scanners or validated by multiple independent sources. Indicators are reliable enough to drive automated action.

Indicators

Observed patterns and artifacts associated with this entry. Each indicator can be copied into your detection stack or SIEM.

(?i)log(?:ger)?\.(?:info|debug)\(.{0,200}(?:headers|authorization)

Detection rule

A YARA-style pseudo-rule auto-generated from the indicators above. Useful as a starting point — adapt the syntax for your target detection platform.

YARA-style pseudo-rule

rule jiffy_ti_2026_000087
{
    meta:
        source = "jiffy-intel"
        severity = "high"
        description = "Auto-generated from Jiffy Intel indicators"
    strings:
    $content_pattern_0 = "(?i)log(?:ger)?\\.(?:info|debug)\\(.{0,200}(?:headers|authorization)"
    condition:
        $content_pattern_0
}

Auto-generated from the indicators above. Adapt syntax for your detection stack before deploying.

Affected tools

Tool	Versions	Status
ChatGPT (GPT Store)	`*`	vulnerable

Example artifacts

Sanitized examples of artifacts Jiffy has observed exhibiting this pattern. Publisher handles are redacted; version ranges and status reflect the most recent scan.

Webhook Debug GPTCustom GPT
Under review
Source
OpenAI GPT Store
First observed
Mar 13, 2026
API Tester GPTCustom GPT
Quarantined
Source
OpenAI GPT Store
First observed
Mar 17, 2026

How to remediate

01Redact Authorization headers in Action backend logs.
02Use structured logging with an explicit allowlist.

Timeline & sources

Timeline

First observedMar 13, 20261 month ago
Last updatedApr 27, 2026today
PublishedMar 25, 202623 days ago

Sources

scanner

References

genai.owasp.orgOWASP

OWASP LLM-02: Sensitive Information Disclosure (2026)

https://genai.owasp.org/llmrisk/llm-02-2026/

attack.mitre.org

MITRE ATT&CK T1555 — Credentials from Password Stores

https://attack.mitre.org/techniques/T1555/

Related intel

Other entries of type Credential Exfil, or the most recent published entries if no same-type matches exist.

Credential ExfilHigh

.cursorrules fetches remote rule that encodes "submit secrets" logic

.cursorrules with `extends: <url>` resolves to a remote rule set whose content includes directives to read repo-local .env and post-process before any commit. A separation between policy declaration (local) and policy content (remote) hides the exfiltration.

Jiffy IntelApr 27

Credential ExfilLow

Claude Project knowledge file contains hardcoded API tokens

Project uploader accidentally includes a knowledge file (often a README or internal doc) that has API tokens embedded. Any team member running the project can view the file, and the tokens enter model context on every turn.