CVE-2026-71192

MEDIUMPre-NVD 6.06.0—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (35th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
6.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.0Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In OpenStack Swift through 2.38.0, the S3API middleware does not sanitize Swift-native control headers (X-Copy-From, X-Copy-From-Account) from S3 API requests when s3_acl=true. An attacker can inject these headers into a signed PUT request targeting their own bucket, causing Swift to perform a server-side copy from another tenant's private object. The source object authorization is bypassed because the S3API middleware has already authorized the request against the destination. The attacker can read any object whose project_id, container name, and object name are known, regardless of the source object's ACLs or ownership. This requires the non-default s3_acl=true configuration.

CVSS v3
6.0
EG Score
6.0MEDIUMmedium confidence
EG Risk
27
EG Risk 27/100CISA SSVC

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
Severity60% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
35th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 5, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Aug 5, 2026
Patch available.
generic

OSSA-2026-030: Swift S3API header authorization bypass — OpenStack Security Advisories 0.0.1.dev359 documentation

https://security.openstack.org/ossa/OSSA-2026-030.html
generic

oss-security - [OSSA-2026-030] OpenStack Swift: S3API header authorization bypass (CVE-2026-pending)

https://openwall.com/lists/oss-security/2026/07/28/26
generic

Bug #2158733 “[OSSA-2026-030] Swift S3API header authorization b...” : Bugs : OpenStack Object Storage (swift)

https://launchpad.net/bugs/2158733

Vendor Advisories for CVE-2026-71192(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 rangeFix by version rangeDependents
swift2.26.0-10 ... 2.37.1-6 (55 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
swift2.30.0-4, 2.30.1-0+deb12u1, 2.30.1-0+deb12u2
  • every version up to 2.30.1-0+deb12u3: fixed in 2.30.1-0+deb12u3
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
swift2.35.0-4, 2.35.1-0+deb13u1, 2.35.1-0+deb13u2
  • every version up to 2.35.1-0+deb13u3: fixed in 2.35.1-0+deb13u3
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
swift2.35.0-4 ... 2.37.1-5 (17 versions)
  • every version up to 2.37.1-6: fixed in 2.37.1-6
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 65× 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 158 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-71192?
CVE-2026-71192 is a medium vulnerability published on August 5, 2026. In OpenStack Swift through 2.38.0, the S3API middleware does not sanitize Swift-native control headers (X-Copy-From, X-Copy-From-Account) from S3 API requests when s3_acl=true. An attacker can inject these headers into a signed PUT request targeting their own bucket, causing Swift to perform a…
When was CVE-2026-71192 disclosed?
CVE-2026-71192 was first published on August 5, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71192 actively exploited?
CVE-2026-71192 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (35th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-71192?
CVE-2026-71192 has a CVSS base score of 6.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-71192?
A fix for CVE-2026-71192 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-71192 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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