CVE-2018-1098

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 1.3%, top 33% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A cross-site request forgery flaw was found in etcd 3.3.1 and earlier. An attacker can set up a website that tries to send a POST request to the etcd server and modify a key. Adding a key is done with PUT so it is theoretically safe (can't PUT from an HTML form or such) but POST allows creating in-order keys that an attacker can send.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
67%
KEV
Not listed

Published

April 3, 2018

Last Modified

November 21, 2024

Advisory Details (4)

Auto-updated Aug 18, 2026
Patch available. Sources: redhat.
generic

[SECURITY] Fedora 30 Update: etcd-3.3.12-1.20190314gite1ca3b4.fc30 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/
generic

[SECURITY] Fedora 29 Update: etcd-3.3.12-4.20190413gitf29b1ad.fc29 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/
generic

Mitigate CSRF and DNS Rebinding attacks · Issue #9353 · etcd-io/etcd · GitHub

https://github.com/coreos/etcd/issues/9353
redhat Patch Available

1552714 – (CVE-2018-1098) CVE-2018-1098 etcd: Cross-site request forgery via crafted local POST forms

https://bugzilla.redhat.com/show_bug.cgi?id=1552714

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
etcd3.3.25+dfsg-6 ... 3.5.5-1 (36 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
etcd—3.4.23-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
etcd—3.4.23-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
etcd—3.4.23-1—
Go(1)
PackageVulnerable rangeFixed inDependents
go.etcd.io/etcd/v3—3.4.0—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 23× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 142 total refreshes for this CVE.

  1. 2026-09-07 15:57 UTCEPSS rescore
  2. 2026-09-06 13:43 UTCEPSS rescore
  3. 2026-09-05 15:24 UTCEPSS rescore
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  13. 2026-08-22 20:07 UTCOSV refresh
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  1. 2026-08-07 16:23 UTCEPSS rescore
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  3. 2026-08-06 13:42 UTCEPSS rescore
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  5. 2026-08-04 15:05 UTCEPSS rescore
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  8. 2026-07-30 16:24 UTCEPSS rescore
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  10. 2026-07-28 15:32 UTCEPSS rescore
  11. 2026-07-26 14:51 UTCEPSS rescore
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  17. 2026-07-23 01:32 UTCEG score recompute
  18. 2026-07-22 22:12 UTCEG score recompute
  19. 2026-07-22 14:05 UTCEPSS rescore
  20. 2026-07-21 15:22 UTCEPSS rescore
  21. 2026-07-21 15:18 UTCOSV refresh
  22. 2026-07-20 17:04 UTCEPSS rescore
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  24. 2026-07-19 02:26 UTCEPSS rescore
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  26. 2026-07-16 16:59 UTCEPSS rescore
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  28. 2026-07-15 16:55 UTCEPSS rescore
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  37. 2026-07-09 19:06 UTCEPSS rescore
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  44. 2026-07-05 02:27 UTCEPSS rescore
  45. 2026-07-04 10:56 UTCOSV refresh
  46. 2026-07-04 06:28 UTCEPSS rescore
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  48. 2026-07-02 16:54 UTCEPSS rescore
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  50. 2026-07-01 15:03 UTCEPSS rescore
  51. 2026-06-30 23:20 UTCEPSS rescore
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  73. 2026-06-18 17:50 UTCEPSS rescore
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  75. 2026-06-17 17:50 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-1098?
CVE-2018-1098 is a high vulnerability published on April 3, 2018. A cross-site request forgery flaw was found in etcd 3.3.1 and earlier. An attacker can set up a website that tries to send a POST request to the etcd server and modify a key. Adding a key is done with PUT so it is theoretically safe (can't PUT from an HTML form or such) but POST allows creating…
When was CVE-2018-1098 disclosed?
CVE-2018-1098 was first published in the National Vulnerability Database on April 3, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-1098 actively exploited?
CVE-2018-1098 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 32.6% of all scored CVEs.
What is the CVSS score of CVE-2018-1098?
CVE-2018-1098 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2018-1098?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-1098, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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