CVE-2026-52688

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-23. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

July 23, 2026

Last Modified

July 23, 2026

References (1)

Vendor Advisories for CVE-2026-52688(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
pdns-recursor4.4.2-3 ... 5.4.4-1 (65 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
pdns-recursor4.8.4-1 ... 5.4.5-1 (51 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
pdns-recursor5.2.11-0+deb13u1 ... 5.2.9-0+deb13u1 (8 versions)5.2.12-0+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
pdns-recursor5.2.4-2 ... 5.4.3-1 (18 versions)5.4.4-1—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 87× 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 179 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-52688?
CVE-2026-52688 is a high vulnerability published on July 23, 2026. RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation
When was CVE-2026-52688 disclosed?
CVE-2026-52688 was first published in the National Vulnerability Database on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-52688 actively exploited?
CVE-2026-52688 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 97.7% of all scored CVEs.
What is the CVSS score of CVE-2026-52688?
CVE-2026-52688 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-52688?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-52688, 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.

Dependency Blast Radius

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