CVE-2026-33621Public exploitNetwork attack vector

API token guessing via unapplied rate limiting

Published Mar 26, 2026 · Updated Mar 26, 2026

Insufficient rate limiting in PinchTab 0.7.7 through 0.8.4 allows remote attackers to guess weak API tokens via repeated HTTP requests. The production handler chain omits RateLimitMiddleware through 0.8.3; in 0.8.4, the health route remains exempt, while the earlier limiter also trusts X-Forwarded-For. Exploitation requires a reachable API and a weak or reused token; the default loopback binding and generated random token substantially reduce practical exposure.

CVSS severity4.8
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient rate limiting in PinchTab 0.7.7 through 0.8.4 allows remote attackers to guess weak API tokens via repeated HTTP requests. The production handler chain omits RateLimitMiddleware through 0.8.3; in 0.8.4, the health route remains exempt, while the earlier limiter also trusts X-Forwarded-For. Exploitation requires a reachable API and a weak or reused token; the default loopback binding and generated random token substantially reduce practical exposure.

The record

CVE
CVE-2026-33621
Published
Mar 26, 2026
Updated
Mar 26, 2026
Vendor
PinchTab
Product
PinchTab
Classifications
CWE-770, CWE-290, T1110.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 0.7.7, < 0.8.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PinchTab · PinchTabversion=>= 0.7.7, < 0.8.5

Published CVSS scores

4.8GitHubCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CWE-290Authentication Bypass by Spoofing
T1110.001Password Guessing

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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