CVE-2017-14460: An exploitable overly permissive cross-domain (CORS) whitelist vulnerability exists in JSON-RPC of Parity Ethe

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HIGH 7.5DOWNGRADE

CVE-2017-14460 is a high-severity flaw (CVSS 7.5) affecting ethereum client. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An exploitable overly permissive cross-domain (CORS) whitelist vulnerability exists in JSON-RPC of Parity Ethereum client version 1.7.8. An automatically sent JSON object to JSON-RPC endpoint can trigger this vulnerability. A victim needs to visit a malicious website to trigger this vulnerability.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Published	2018-01-19
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: parity

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-01-19 23:29 UTCPublished CVE record published
2026-06-17 01:06 UTCUpdated Record last modified

parity ethereum client DOWNGRADE

Affected: 1.7.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.7.8

1. Check installed version

apt-cache policy ethereum-client || rpm -q ethereum-client || ethereum-client --version

2. No fixed release: DOWNGRADE to a release before 1.7.8 (Debian / Ubuntu)

apt-cache madison ethereum-client sudo apt install ethereum-client=<VERSION_BEFORE_1.7.8> sudo apt-mark hold ethereum-client

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list ethereum-client sudo dnf downgrade ethereum-client-<VERSION_BEFORE_1.7.8> sudo dnf versionlock add ethereum-client

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-14460?

ethereum client: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-14460 being exploited?

CVE-2017-14460 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-14460 affect?

CVE-2017-14460 affects ethereum client. Severity is high (CVSS 7.5). An exploitable overly permissive cross-domain (CORS) whitelist vulnerability exists in JSON-RPC of Parity Ethereum client version 1.7.8. An automatically sent JSON object to JSON-RPC endpoint can trigger this vulnerability. A victim needs t

How urgent is CVE-2017-14460?

Priority 48/100. High severity; Public exploit reference

References

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