CVE-2026-82376

HIGHPre-NVD 7.77.7
EchelonGraph scoreMEDIUM confidence

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

Score 7.7 from GitHub Security Advisory (severity: HIGH) published 2026-09-28. A secondary CVSS source baseline 7.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-88135 (ENISA EUVD) · GHSA-hfqv-pmcp-9hpg (GitHub Security Advisories)Source: ENISA EUVD

7.7EG
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: 0.3%CVSS: 7.7Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

Improper Restriction of XML External Entity Reference in Apache Roller 6.1.5 allows a user with entry-editing rights on a weblog to cause the server to parse an attacker-influenced trackback response with an XML parser that does not disable external entity resolution, leading to disclosure of files readable by the Roller process. The Trackback control is hidden in the standard UI, but its action remains directly reachable, and no non-default server configuration is required. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which removes the outbound trackback response parser.

CVSS v3
7.7
EG Score
7.7HIGHmedium confidence
EG Risk
35
EG Risk 35/100

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)
Severity77% × 45%
Impact severity (EG Severity): CVSS 7.7 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
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: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
22nd
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 (7.7): severity, escalated by confirmed exploitation. This CVE's 7.7 is its impact severity (EG Severity), not escalated.

EG Severity
7.7 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). 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.

The CVE record names the fixed release. 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

September 28, 2026

Last Modified

September 29, 2026

Advisory Details (2)

Auto-updated Sep 28, 2026
Fix named in the CVE record. Sources: github_pr.
GitHub pull request

Remove legacy outbound trackback action

Fix merged in apache/roller PR #163 on 2026-09-05 — awaiting tagged release

https://github.com/apache/roller/pull/163

Vendor Advisories for CVE-2026-82376(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 67× 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 it from the CNA feed. 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). Most recent first.

  1. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  2. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  3. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  4. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  5. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  6. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  7. 2026-10-28 09:35 UTCEG score recompute
  8. 2026-10-28 09:34 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  9. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  10. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  11. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  12. 2026-10-25 13:58 UTCEG score recompute
  13. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  14. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  15. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  16. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  17. 2026-10-20 18:04 UTCEG score recompute
  18. 2026-10-20 18:03 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  19. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  20. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  21. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  22. 2026-10-18 03:08 UTCEG score recompute
  23. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  24. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  25. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
Show 70 more
  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  2. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  3. 2026-10-13 06:05 UTCEG score recompute
  4. 2026-10-13 06:05 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  5. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  6. 2026-10-12 14:55 UTCEG score recompute
  7. 2026-10-11 23:15 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  8. 2026-10-11 19:20 UTCEG score recompute
  9. 2026-10-11 16:36 UTCEG score recompute
  10. 2026-10-11 13:54 UTCEG score recompute
  11. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  12. 2026-10-11 10:58 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  13. 2026-10-10 22:41 UTCEG score recompute
  14. 2026-10-10 22:41 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  15. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  16. 2026-10-10 10:24 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  17. 2026-10-09 22:06 UTCEG score recompute
  18. 2026-10-09 22:06 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  19. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  20. 2026-10-09 09:48 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  21. 2026-10-08 21:28 UTCEG score recompute
  22. 2026-10-08 21:28 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  23. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  24. 2026-10-08 09:08 UTCEG score recompute
  25. 2026-10-08 09:08 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  26. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  27. 2026-10-07 20:51 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  28. 2026-10-07 08:27 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  29. 2026-10-06 20:04 UTCEG score recompute
  30. 2026-10-06 20:04 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  31. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  32. 2026-10-06 07:47 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  33. 2026-10-05 19:30 UTCEG score recompute
  34. 2026-10-05 19:30 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  35. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  36. 2026-10-05 07:13 UTCEG score recompute
  37. 2026-10-05 07:13 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  38. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  39. 2026-10-04 18:55 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  40. 2026-10-04 06:34 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  41. 2026-10-03 18:17 UTCEG score recompute
  42. 2026-10-03 18:17 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  43. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  44. 2026-10-03 05:55 UTCEG score recompute
  45. 2026-10-03 05:55 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  46. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  47. 2026-10-02 17:37 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  48. 2026-10-02 05:20 UTCEG score recompute
  49. 2026-10-02 05:20 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  50. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  51. 2026-10-01 17:00 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  52. 2026-10-01 04:38 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  53. 2026-09-30 16:17 UTCEG score recompute
  54. 2026-09-30 16:17 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  55. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  56. 2026-09-30 03:42 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  57. 2026-09-29 15:25 UTCEG score recompute
  58. 2026-09-29 15:25 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  59. 2026-09-29 14:59 UTCEG score recompute
  60. 2026-09-29 14:59 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  61. 2026-09-29 02:48 UTCEG score recompute
  62. 2026-09-29 02:48 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  63. 2026-09-28 14:30 UTCEG score recompute
  64. 2026-09-28 14:30 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  65. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  66. 2026-09-28 09:32 UTCEG score recompute
  67. 2026-09-28 09:32 UTCGHSA enrichmentGHSA-hfqv-pmcp-9hpg · GitHub severity HIGH · GitHub CVSS 7.7
  68. 2026-09-28 08:29 UTCEG score recompute
  69. 2026-09-28 07:47 UTCEG score recomputeFirst assessed: 7.7 HIGH
  70. 2026-09-28 07:47 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-82376?
CVE-2026-82376 is a high-severity vulnerability; its CVE record was published on September 28, 2026. Improper Restriction of XML External Entity Reference in Apache Roller 6.1.5 allows a user with entry-editing rights on a weblog to cause the server to parse an attacker-influenced trackback response with an XML parser that does not disable external entity resolution, leading to disclosure of files…
When was the CVE record for CVE-2026-82376 published?
The CVE record for CVE-2026-82376 was published on September 28, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 29, 2026; the record at its source may have been updated since.
Is CVE-2026-82376 actively exploited?
CVE-2026-82376 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (22nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-82376?
CVE-2026-82376 has a CVSS base score of 7.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-82376?
The CVE record for CVE-2026-82376 names the fix: "Users are recommended to upgrade to Apache Roller 6.1.6 or later, which removes the outbound trackback response parser." The vendor advisories EchelonGraph has for CVE-2026-82376 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-82376

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