Exposure of Resource to Wrong Sphere Affecting curl-7.69.1 package, versions <7.69.1+e1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
4.27% (91st percentile)

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  • Snyk IDSNYK-ECHOLATEST-CURL7691-21280044
  • published20 Oct 2026
  • disclosed11 Jun 2021

Introduced: 11 Jun 2021

CVE-2021-22897  (opens in a new tab)
CWE-668  (opens in a new tab)

How to fix?

Upgrade Echo:latest curl-7.69.1 to version 7.69.1+e1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl-7.69.1 package and not the curl-7.69.1 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

curl 7.61.0 through 7.76.1 suffers from exposure of data element to wrong session due to a mistake in the code for CURLOPT_SSL_CIPHER_LIST when libcurl is built to use the Schannel TLS library. The selected cipher set was stored in a single "static" variable in the library, which has the surprising side-effect that if an application sets up multiple concurrent transfers, the last one that sets the ciphers will accidentally control the set used by all transfers. In a worst-case scenario, this weakens transport security significantly.

CVSS Base Scores

version 3.1