CVE-2026-61449

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-15. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: Elevated riskExposed: 0

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

Grav 2.0.1 contains a decompression-bomb size-cap bypass in ZipArchiver and GPM\Installer. The size bound introduced in 2.0.1 sums the uncompressed size declared in each entry's ZIP central-directory header (ZipArchive::statIndex()['size']) and rejects archives exceeding system.gpm.archive.max_uncompressed_size before extraction. Because this declared size is attacker-forgeable and is not cross-checked against the actual inflated stream, a crafted archive declaring tiny per-entry sizes passes the cap while extractTo() writes the real, much larger content, filling disk or exhausting inodes. The archive must be supplied by a package source or admin upload (admin/operator trust). Fixed in 2.0.2. This is an incomplete fix for GHSA-928x-9mpw-8h56.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

July 15, 2026

Last Modified

July 15, 2026

Advisory Details (2)

Auto-updated Jul 15, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Grav before 2.0.2 Decompression Bomb via Forged ZIP Size | Advisories | VulnCheck

https://www.vulncheck.com/advisories/grav-before-decompression-bomb-via-forged-zip-size
github Patch Available🟡 PoC Available

Decompression-bomb size cap bypassed by forged ZIP size in ZipArchiver/Installer · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-8h9x-89f2-m7x3

Vendor Advisories for CVE-2026-61449(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 14× in last 7d / 77× 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 113 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-61449?
CVE-2026-61449 is a medium vulnerability published on July 15, 2026. Grav 2.0.1 contains a decompression-bomb size-cap bypass in ZipArchiver and GPM\Installer. The size bound introduced in 2.0.1 sums the uncompressed size declared in each entry's ZIP central-directory header (ZipArchive::statIndex()['size']) and rejects archives exceeding…
When was CVE-2026-61449 disclosed?
CVE-2026-61449 was first published in the National Vulnerability Database on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-61449 actively exploited?
CVE-2026-61449 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 63.4% of all scored CVEs.
What is the CVSS score of CVE-2026-61449?
CVE-2026-61449 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-61449?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-61449, 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.

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