CVE-2026-74880Network attack vectorHinoki check available

Token leakage via refresh-token query strings

Published Aug 17, 2026 · Updated Aug 17, 2026

Exposure of sensitive tokens in jahlives OpenSSL Encrypt before 1.4.0 allows attackers to gain unauthorized access via leaked refresh-token URLs. The refresh_token handlers in the keyserver and telemetry FastAPI routes bind the token with Query(...), placing the secret in the request URL instead of a POST body. Reachability depends on access to server or proxy logs, browser history, network captures, or Referer-bearing requests that record those URLs, after which the exposed token can be replayed until expiry or revocation.

CVSS severity9.3
Critical
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Exposure of sensitive tokens in jahlives OpenSSL Encrypt before 1.4.0 allows attackers to gain unauthorized access via leaked refresh-token URLs. The refresh_token handlers in the keyserver and telemetry FastAPI routes bind the token with Query(...), placing the secret in the request URL instead of a POST body. Reachability depends on access to server or proxy logs, browser history, network captures, or Referer-bearing requests that record those URLs, after which the exposed token can be replayed until expiry or revocation.

The record

CVE
CVE-2026-74880
Published
Aug 17, 2026
Updated
Aug 17, 2026
Vendor
jahlives
Product
OpenSSL Encrypt
Classifications
CWE-598, T1552.001
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 17, 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 <1.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

jahlives · OpenSSL Encryptversion=0 <1.4.0

Published CVSS scores

9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-598Use of GET Request Method With Sensitive Query Strings
T1552.001Credentials In Files

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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