CVE-2018-8014

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2018-10-17. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Elevated

Also known asEUVD-2018-0675 (ENISA EUVD) · GHSA-r4x2-3cq5-hqvp (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 21%CVSS: 9.8Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

The defaults settings for the CORS filter provided in Apache Tomcat 9.0.0.M1 to 9.0.8, 8.5.0 to 8.5.31, 8.0.0.RC1 to 8.0.52, 7.0.41 to 7.0.88 are insecure and enable 'supportsCredentials' for all origins. It is expected that users of the CORS filter will have configured it appropriately for their environment rather than using it in the default configuration. Therefore, it is expected that most users will not be impacted by this issue.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
60
EG Risk 60/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
21%
EPSS %ILE
97th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
21% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-11). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 16, 2018

Last Modified

October 15, 2026

Advisory Details (10)

Auto-updated Nov 7, 2026
Patch available. Sources: redhat.
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2018:3768
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2018:2470
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2018:2469
Web page

Apache Tomcat® - Apache Tomcat 9 vulnerabilities

http://tomcat.apache.org/security-9.html
Web page

Apache Tomcat® - Apache Tomcat 8 vulnerabilities

http://tomcat.apache.org/security-8.html
Web page

Apache Tomcat® - Apache Tomcat 7 vulnerabilities

http://tomcat.apache.org/security-7.html
Web page

PSIRT.COM — Product Security Incident Response Team

http://www.securityfocus.com/bid/104203
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2019:0451

Vendor Advisories for CVE-2018-8014(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(11)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntutomcat8-user (8.0.32-1ubuntu1.6) @ xenial2026-11-03ubuntu
redhattomcat-0:7.0.76-9.el72019-08-06redhat
redhatpki-deps:10.6-8000020190524054914.55190bc52019-06-18redhat
redhatjws5-tomcat-vault-0:1.1.7-5.Final_redhat_2.1.el7jws2019-03-04redhat
redhattomcat2019-03-04redhat
redhattomcat82018-08-16redhat
redhattomcat-native-0:1.2.17-17.redhat_17.ep7.el72018-08-16redhat
mavenorg.apache.tomcat.embed:tomcat-embed-core @ 8.0.53 (fixes >= 8.0.0RC1, < 8.0.53)—ghsa
mavenorg.apache.tomcat.embed:tomcat-embed-core @ 7.0.88 (fixes >= 7.0.41, < 7.0.88)—ghsa
mavenorg.apache.tomcat.embed:tomcat-embed-core @ 8.5.32 (fixes >= 8.5.0, < 8.5.32)—ghsa
mavenorg.apache.tomcat.embed:tomcat-embed-core @ 9.0.9 (fixes >= 9.0.0.M1, <= 9.0.8)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 3 ecosystems)
Debian:8(2)
PackageVulnerable rangeFix by version rangeDependents
tomcat77.0.56-3 ... 7.0.56-3+deb8u9 (12 versions)
  • every version up to 7.0.56-3+really7.0.88-1: fixed in 7.0.56-3+really7.0.88-1
—
tomcat88.0.14-1 ... 8.0.14-1+deb8u9 (15 versions)
  • every version up to 8.0.14-1+deb8u15: fixed in 8.0.14-1+deb8u15
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
tomcat88.5.14-1 ... 8.5.39-1 (36 versions)
  • every version up to 8.5.50-0+deb9u1: fixed in 8.5.50-0+deb9u1
—
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.apache.tomcat.embed:tomcat-embed-core7.0.41 ... 7.0.86 (32 versions)
  • 9.0.0.M1 up to 9.0.9: fixed in 9.0.9
  • 8.5.0 up to 8.5.32: fixed in 8.5.32
  • 8.0.0RC1 up to 8.0.53: fixed in 8.0.53
  • 7.0.41 up to 7.0.88: fixed in 7.0.88
—

Weakness Classification(1)

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

Additional Vendor Advisories

(7)

Data Freshness Timeline

(refreshed 21× in last 7d / 74× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 258 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 158 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:28 UTCEPSS rescoreEPSS 21% · 97th percentile
  2. 2026-11-12 13:23 UTCEchelonGraph re-scored
  3. 2026-11-12 13:23 UTCVendor advisory
  4. 2026-11-12 13:23 UTCGHSA enrichmentGHSA-r4x2-3cq5-hqvp · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-11-11 16:30 UTCEPSS rescoreEPSS 21% · 97th percentile
  6. 2026-11-11 12:58 UTCEchelonGraph re-scored
  7. 2026-11-11 12:58 UTCVendor advisory
  8. 2026-11-11 12:58 UTCGHSA enrichmentGHSA-r4x2-3cq5-hqvp · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-11-10 16:32 UTCEPSS rescoreEPSS 21% · 97th percentile
  10. 2026-11-10 12:32 UTCEchelonGraph re-scored
  11. 2026-11-10 12:32 UTCVendor advisory
  12. 2026-11-10 12:32 UTCGHSA enrichmentGHSA-r4x2-3cq5-hqvp · GitHub severity CRITICAL · GitHub CVSS 9.8
  13. 2026-11-09 16:28 UTCEPSS rescoreEPSS 21% · 97th percentile
  14. 2026-11-09 12:07 UTCEchelonGraph re-scored
  15. 2026-11-09 12:07 UTCVendor advisory
  16. 2026-11-09 12:07 UTCGHSA enrichmentGHSA-r4x2-3cq5-hqvp · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-11-08 16:31 UTCEPSS rescoreEPSS 21% · 97th percentile
  18. 2026-11-08 11:40 UTCEchelonGraph re-scored
  19. 2026-11-08 11:40 UTCVendor advisory
  20. 2026-11-08 11:40 UTCGHSA enrichmentGHSA-r4x2-3cq5-hqvp · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-11-07 16:32 UTCEPSS rescoreEPSS 21% · 97th percentile
  22. 2026-11-07 11:14 UTCEchelonGraph re-scored
  23. 2026-11-07 11:14 UTCVendor advisory
  24. 2026-11-07 11:14 UTCGHSA enrichmentGHSA-r4x2-3cq5-hqvp · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-11-06 16:28 UTCEPSS rescoreEPSS 21% · 97th percentile
Show 75 more
  1. 2026-11-06 10:49 UTCEchelonGraph re-scored
  2. 2026-11-06 10:49 UTCVendor advisory
  3. 2026-11-06 10:49 UTCGHSA enrichmentGHSA-r4x2-3cq5-hqvp · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-11-05 16:28 UTCEPSS rescoreEPSS 21% · 97th percentile
  5. 2026-11-05 10:24 UTCEchelonGraph re-scored
  6. 2026-11-05 10:24 UTCVendor advisory
  7. 2026-11-05 10:24 UTCGHSA enrichmentGHSA-r4x2-3cq5-hqvp · GitHub severity CRITICAL · GitHub CVSS 9.8
  8. 2026-11-04 16:28 UTCEPSS rescoreEPSS 21% · 97th percentile
  9. 2026-11-04 09:58 UTCEchelonGraph re-scored
  10. 2026-11-04 09:58 UTCVendor advisory
  11. 2026-11-04 09:58 UTCGHSA enrichmentGHSA-r4x2-3cq5-hqvp · GitHub severity CRITICAL · GitHub CVSS 9.8
  12. 2026-11-03 16:35 UTCEPSS rescoreEPSS 21% · 97th percentile
  13. 2026-11-03 09:33 UTCEchelonGraph re-scored
  14. 2026-11-03 09:33 UTCVendor advisory
  15. 2026-11-03 09:33 UTCGHSA enrichmentGHSA-r4x2-3cq5-hqvp · GitHub severity CRITICAL · GitHub CVSS 9.8
  16. 2026-11-03 00:25 UTCOSV refresh
  17. 2026-11-02 16:35 UTCEPSS rescoreEPSS 21% · 97th percentile
  18. 2026-11-02 09:07 UTCEchelonGraph re-scored
  19. 2026-11-02 09:07 UTCVendor advisory
  20. 2026-11-02 09:07 UTCGHSA enrichmentGHSA-r4x2-3cq5-hqvp · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-11-01 16:28 UTCEPSS rescoreEPSS 21% · 97th percentile
  22. 2026-11-01 08:43 UTCVendor advisory
  23. 2026-11-01 08:43 UTCGHSA enrichmentGHSA-r4x2-3cq5-hqvp · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-11-01 08:42 UTCGHSA enrichmentGHSA-r4x2-3cq5-hqvp · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-11-01 08:42 UTCEchelonGraph re-scored
  26. 2026-10-31 16:27 UTCEPSS rescoreEPSS 21% · 97th percentile
  27. 2026-10-31 08:17 UTCEchelonGraph re-scored
  28. 2026-10-31 08:17 UTCVendor advisory
  29. 2026-10-30 16:28 UTCEPSS rescoreEPSS 21% · 97th percentile
  30. 2026-10-30 07:52 UTCEchelonGraph re-scored
  31. 2026-10-30 07:52 UTCVendor advisory
  32. 2026-10-29 16:28 UTCEPSS rescoreEPSS 21% · 97th percentile
  33. 2026-10-29 07:27 UTCEchelonGraph re-scored
  34. 2026-10-29 07:27 UTCVendor advisory
  35. 2026-10-28 16:27 UTCEPSS rescoreEPSS 21% · 97th percentile
  36. 2026-10-28 07:02 UTCEchelonGraph re-scored
  37. 2026-10-28 07:02 UTCVendor advisory
  38. 2026-10-27 16:27 UTCEPSS rescoreEPSS 21% · 97th percentile
  39. 2026-10-27 06:37 UTCEchelonGraph re-scored
  40. 2026-10-27 06:37 UTCVendor advisory
  41. 2026-10-26 16:27 UTCEPSS rescoreEPSS 21% · 97th percentile
  42. 2026-10-26 02:30 UTCVendor advisory
  43. 2026-10-25 19:15 UTCEchelonGraph re-scored
  44. 2026-10-25 16:27 UTCEPSS rescoreEPSS 21% · 97th percentile
  45. 2026-10-25 02:04 UTCEchelonGraph re-scored
  46. 2026-10-25 02:04 UTCVendor advisory
  47. 2026-10-24 16:27 UTCEPSS rescoreEPSS 21% · 97th percentile
  48. 2026-10-24 01:38 UTCEchelonGraph re-scored
  49. 2026-10-24 01:38 UTCVendor advisory
  50. 2026-10-23 16:27 UTCEPSS rescoreEPSS 21% · 97th percentile
  51. 2026-10-23 01:12 UTCEchelonGraph re-scored
  52. 2026-10-23 01:12 UTCVendor advisory
  53. 2026-10-22 16:28 UTCEPSS rescoreEPSS 21% · 97th percentile
  54. 2026-10-22 00:43 UTCEchelonGraph re-scored
  55. 2026-10-22 00:43 UTCVendor advisory
  56. 2026-10-21 16:27 UTCEPSS rescoreEPSS 21% · 97th percentile
  57. 2026-10-21 00:17 UTCEchelonGraph re-scored
  58. 2026-10-21 00:17 UTCVendor advisory
  59. 2026-10-20 16:27 UTCEPSS rescoreEPSS 21% · 97th percentile
  60. 2026-10-19 23:48 UTCEchelonGraph re-scored
  61. 2026-10-19 23:48 UTCVendor advisory
  62. 2026-10-19 16:27 UTCEPSS rescoreEPSS 21% · 97th percentile
  63. 2026-10-18 23:12 UTCEchelonGraph re-scored
  64. 2026-10-18 23:12 UTCVendor advisory
  65. 2026-10-18 10:01 UTCEchelonGraph re-scored
  66. 2026-10-17 22:26 UTCEchelonGraph re-scored
  67. 2026-10-17 22:26 UTCVendor advisory
  68. 2026-10-17 16:27 UTCEPSS rescoreEPSS 21% · 97th percentile
  69. 2026-10-16 22:01 UTCEchelonGraph re-scored
  70. 2026-10-16 22:01 UTCVendor advisory
  71. 2026-10-16 16:30 UTCEPSS rescoreEPSS 21% · 97th percentile
  72. 2026-10-15 18:27 UTCVendor advisory
  73. 2026-10-15 17:55 UTCEchelonGraph re-scored
  74. 2026-10-15 17:55 UTCVendor advisory
  75. 2026-10-15 16:27 UTCEPSS rescoreEPSS 21% · 97th percentile

Frequently asked(5)

What is CVE-2018-8014?
CVE-2018-8014 is a critical-severity vulnerability; its CVE record was published on May 16, 2018. The defaults settings for the CORS filter provided in Apache Tomcat 9.0.0.M1 to 9.0.8, 8.5.0 to 8.5.31, 8.0.0.RC1 to 8.0.52, 7.0.41 to 7.0.88 are insecure and enable 'supportsCredentials' for all origins. It is expected that users of the CORS filter will have configured it appropriately for their…
When was CVE-2018-8014 made public?
CVE-2018-8014 was made public on May 16, 2018: that is the date its CVE record's CNA, Apache Software Foundation, gives for when the vulnerability was made public. The CVE record itself was published on May 16, 2018. EchelonGraph's copy of the record carries a last-modified date of October 15, 2026; the record at its source may have been updated since.
Is CVE-2018-8014 actively exploited?
CVE-2018-8014 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 21% probability of exploitation in the next 30 days (97th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2018-8014?
CVE-2018-8014 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2018-8014?
A fix for CVE-2018-8014 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2018-8014 are linked in the Vendor Advisories panel on this page.

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