CVE-2026-72815

MEDIUMPre-NVD 6.96.9
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (43rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated

Also known asEUVD-2026-58630 (ENISA EUVD) · GHSA-qgxv-hqxp-4rcx (GitHub Security Advisories) · GO-2026-5774 (OSV.dev)Source: ENISA EUVD

6.9EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 6.9Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

go-chi chi versions >= 5.2.1 and before 5.3.0 contain an IP spoofing vulnerability in the RealIP middleware, which blindly trusts the first (leftmost) value of the X-Forwarded-For HTTP header. A remote attacker can bypass IP-based access control lists and rate-limiting mechanisms, and forge log entries, by supplying a spoofed IP address in the X-Forwarded-For header. The issue is fixed in version 5.3.0.

CVSS
6.9
EG Score
6.9MEDIUMmedium confidence
EG Risk
62
EG Risk 62/100

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)
Severity69% × 45%
Impact severity (EG Severity): CVSS 6.9 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.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
43rd
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 (6.9): severity, escalated by confirmed exploitation. This CVE's 6.9 is its impact severity (EG Severity), not escalated.

EG Severity
6.9 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-07). 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 low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days 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 low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

August 14, 2026

Last Modified

October 8, 2026

Advisory Details (2)

Auto-updated Aug 14, 2026
Patch available. Sources: github.
Web pageMentions a patch (unverified)

go-chi chi v5.2.1 IP Spoofing via X-Forwarded-For Header | Advisories | VulnCheck

https://www.vulncheck.com/advisories/go-chi-chi-ip-spoofing-via-x-forwarded-for-header
GitHub advisoryMentions a patch (unverified)

IP Spoofing Vulnerability in `middleware.RealIP` · Advisory · go-chi/chi · GitHub

https://github.com/go-chi/chi/security/advisories/GHSA-3fxj-6jh8-hvhx

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcosign-main-3.1.3-0.1.hum12026-08-12redhat
redhatprometheus3-13-main-3.13.2-0.2.hum12026-08-04redhat
redhatspire1-14-main-1.14.7-0.4.hum12026-08-03redhat
redhatspire1-15-main-1.15.2-0.4.hum12026-08-03redhat

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

(5 across 4 ecosystems)
Go(2)
PackageVulnerable rangeFix by version rangeDependents
github.com/go-chi/chi/v5—
  • 5.2.1 up to 5.3.0: fixed in 5.3.0
—
github.com/go-chi/chi/v5/middleware—
  • 5.2.1 up to 5.3.0: fixed in 5.3.0
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
golang-github-go-chi-chi5.0.7-1 ... 5.3.0-1 (6 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
golang-github-go-chi-chi5.2.0-1, 5.2.3-1, 5.2.5-1, 5.3.0-1
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
golang-github-go-chi-chi5.2.0-1, 5.2.3-1, 5.2.5-1
  • every version up to 5.3.0-1: fixed in 5.3.0-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 34× 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 → 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 238 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 138 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:57 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  2. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  3. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  4. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  5. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  6. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  7. 2026-11-07 19:22 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx · GitHub severity MODERATE
  8. 2026-11-07 19:22 UTCEchelonGraph re-scored
  9. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  10. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  13. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  16. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  17. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  18. 2026-10-30 06:55 UTCOSV refresh
  19. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  20. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  21. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  23. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  24. 2026-10-25 14:06 UTCEchelonGraph re-scored
  25. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
Show 75 more
  1. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  2. 2026-10-22 19:21 UTCEchelonGraph re-scored
  3. 2026-10-22 19:21 UTCVendor advisory
  4. 2026-10-22 19:21 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  5. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  6. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  7. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  8. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  9. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  10. 2026-10-18 03:15 UTCEchelonGraph re-scored
  11. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  12. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  13. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  14. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  15. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  16. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  17. 2026-10-12 15:41 UTCEchelonGraph re-scored
  18. 2026-10-11 19:27 UTCEchelonGraph re-scored
  19. 2026-10-11 16:42 UTCEchelonGraph re-scored
  20. 2026-10-11 14:02 UTCEchelonGraph re-scored
  21. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  22. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  23. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  24. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  25. 2026-10-08 16:37 UTCEchelonGraph re-scored
  26. 2026-10-08 16:37 UTCVendor advisory
  27. 2026-10-08 16:37 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  28. 2026-10-08 15:43 UTCEchelonGraph re-scored
  29. 2026-10-08 15:43 UTCVendor advisory
  30. 2026-10-08 15:43 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  31. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  32. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  33. 2026-10-06 09:24 UTCEchelonGraph re-scored
  34. 2026-10-06 09:24 UTCVendor advisory
  35. 2026-10-06 09:24 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  36. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  37. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  38. 2026-10-04 22:13 UTCVendor advisory
  39. 2026-10-04 22:13 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  40. 2026-10-03 19:42 UTCEchelonGraph re-scored
  41. 2026-10-03 19:42 UTCVendor advisory
  42. 2026-10-03 19:42 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  43. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  44. 2026-10-02 07:22 UTCEchelonGraph re-scored
  45. 2026-10-02 07:22 UTCVendor advisory
  46. 2026-10-02 07:22 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  47. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  48. 2026-09-30 21:42 UTCEchelonGraph re-scored
  49. 2026-09-30 21:42 UTCVendor advisory
  50. 2026-09-30 21:42 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  51. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  52. 2026-09-28 09:12 UTCEchelonGraph re-scored
  53. 2026-09-28 09:12 UTCVendor advisory
  54. 2026-09-28 09:12 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  55. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  56. 2026-09-27 09:39 UTCEchelonGraph re-scored
  57. 2026-09-27 09:39 UTCVendor advisory
  58. 2026-09-27 09:39 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  59. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  60. 2026-09-24 20:16 UTCEchelonGraph re-scored
  61. 2026-09-24 20:16 UTCVendor advisory
  62. 2026-09-24 20:16 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  63. 2026-09-24 01:05 UTCEchelonGraph re-scored
  64. 2026-09-24 01:05 UTCVendor advisory
  65. 2026-09-24 01:05 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  66. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  67. 2026-09-23 01:32 UTCEchelonGraph re-scored
  68. 2026-09-23 01:32 UTCVendor advisory
  69. 2026-09-23 01:32 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  70. 2026-09-22 01:59 UTCEchelonGraph re-scored
  71. 2026-09-22 01:59 UTCVendor advisory
  72. 2026-09-22 01:58 UTCGHSA enrichmentGHSA-qgxv-hqxp-4rcx
  73. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  74. 2026-09-21 02:25 UTCEchelonGraph re-scored
  75. 2026-09-21 02:25 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-72815?
CVE-2026-72815 is a medium-severity vulnerability; its CVE record was published on August 14, 2026. go-chi chi versions >= 5.2.1 and before 5.3.0 contain an IP spoofing vulnerability in the RealIP middleware, which blindly trusts the first (leftmost) value of the X-Forwarded-For HTTP header. A remote attacker can bypass IP-based access control lists and rate-limiting mechanisms, and forge log…
When was CVE-2026-72815 made public?
CVE-2026-72815 was made public on May 22, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on August 14, 2026. EchelonGraph's copy of the record carries a last-modified date of October 8, 2026; the record at its source may have been updated since.
Is CVE-2026-72815 actively exploited?
CVE-2026-72815 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72815?
CVE-2026-72815 has a CVSS base score of 6.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-72815?
A fix for CVE-2026-72815 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72815 are linked in the Vendor Advisories panel on this page.

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