CVE-2026-56772

MEDIUMPre-NVD 4.34.3
EchelonGraph scoreMEDIUM confidence

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

Score 4.3 from GitHub Security Advisory published 2026-06-25. A secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
4.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 4.3Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

NewsBlur before 14.5.0 contains a broken access control vulnerability that allows authenticated users to read private notification feeds by supplying arbitrary user_id values to the GET /social/interactions endpoint without ownership verification. Attackers can enumerate user_id values to access another user's follows, replies, and social activity without authorization.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
19
EG Risk 19/100

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 (value × EchelonGraph’s weight)
Severity43% × 45%
The EG Score, 4.3 of 10.
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: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
EPSS PROB
0.3%
EPSS %ILE
24th
KEV
Not listed

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

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.

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.

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

June 25, 2026

Last Modified

July 14, 2026

Advisory Details (2)

Auto-updated Jun 25, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
Web page

NewsBlur < 14.5.0 - Insecure Direct Object Reference in Social Interactions Endpoint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/newsblur-insecure-direct-object-reference-in-social-interactions-endpoint
GitHub commit

commit 613c60b67cc4 (samuelclay/NewsBlur)

Fix landed in samuelclay/NewsBlur commit 613c60b67cc4 — awaiting tagged release

https://github.com/samuelclay/NewsBlur/commit/613c60b67cc46b3f4cae1dc2dfd8d717a39bc483

Vendor Advisories for CVE-2026-56772(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 10× in last 7d / 36× 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.

Showing the most recent 100 of 196 refreshes 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 96 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 19:38 UTCEG score recompute
  2. 2026-10-11 16:53 UTCEG score recompute
  3. 2026-10-11 14:15 UTCEG score recompute
  4. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  5. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  6. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  7. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  8. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  9. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  10. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  11. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  12. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  13. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  14. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  15. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  16. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  17. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  18. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  19. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  20. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  21. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  22. 2026-09-23 08:30 UTCEG score recompute
  23. 2026-09-23 08:30 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  24. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  25. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 26th percentile
Show 75 more
  1. 2026-09-18 07:20 UTCEG score recompute
  2. 2026-09-18 07:20 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  3. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  4. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  5. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  6. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  7. 2026-09-14 01:17 UTCEG score recompute
  8. 2026-09-14 01:17 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  9. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  10. 2026-09-12 15:43 UTCEG score recompute
  11. 2026-09-12 15:43 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  12. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  13. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  14. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  15. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  16. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  17. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  18. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  19. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  20. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  21. 2026-08-30 19:31 UTCEG score recompute
  22. 2026-08-30 19:31 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  23. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  24. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  25. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  26. 2026-08-27 23:17 UTCEG score recompute
  27. 2026-08-27 23:17 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  28. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  29. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  30. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  31. 2026-08-24 13:09 UTCEG score recompute
  32. 2026-08-24 13:09 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  33. 2026-08-23 10:43 UTCEG score recompute
  34. 2026-08-23 10:43 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  35. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  36. 2026-08-22 10:01 UTCEG score recompute
  37. 2026-08-22 10:01 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  38. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  39. 2026-08-21 07:44 UTCEG score recompute
  40. 2026-08-21 07:44 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  41. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  42. 2026-08-20 07:02 UTCEG score recompute
  43. 2026-08-20 07:02 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  44. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  45. 2026-08-19 01:14 UTCEG score recompute
  46. 2026-08-19 01:14 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  47. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  48. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  49. 2026-08-17 00:49 UTCEG score recompute
  50. 2026-08-17 00:49 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  51. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  52. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  53. 2026-08-16 00:07 UTCEG score recompute
  54. 2026-08-16 00:07 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  55. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  56. 2026-08-14 23:24 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  57. 2026-08-13 22:42 UTCEG score recompute
  58. 2026-08-13 22:42 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  59. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  60. 2026-08-12 21:59 UTCEG score recompute
  61. 2026-08-12 21:59 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  62. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  63. 2026-08-11 21:17 UTCEG score recompute
  64. 2026-08-11 21:17 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  65. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  66. 2026-08-10 20:35 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  67. 2026-08-09 19:53 UTCEG score recompute
  68. 2026-08-09 19:53 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  69. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  70. 2026-08-08 19:11 UTCEG score recompute
  71. 2026-08-08 19:11 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  72. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  73. 2026-08-07 18:28 UTCEG score recompute
  74. 2026-08-07 18:28 UTCGHSA enrichmentGHSA-vg32-rqh8-j8pm · GitHub CVSS 4.3
  75. 2026-08-06 17:45 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56772?
CVE-2026-56772 is a medium-severity vulnerability; its CVE record was published on June 25, 2026. NewsBlur before 14.5.0 contains a broken access control vulnerability that allows authenticated users to read private notification feeds by supplying arbitrary userid values to the GET /social/interactions endpoint without ownership verification. Attackers can enumerate userid values to access…
When was CVE-2026-56772 made public?
CVE-2026-56772 was made public on June 2, 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 June 25, 2026. EchelonGraph's copy of the record carries a last-modified date of July 14, 2026; the record at its source may have been updated since.
Is CVE-2026-56772 actively exploited?
CVE-2026-56772 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (24th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-56772?
CVE-2026-56772 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-56772?
An upstream fix for CVE-2026-56772 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-56772 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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