CVE-2026-97149

MEDIUMPre-NVD 5.35.3
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (16th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source

Also known asEUVD-2026-85786 (ENISA EUVD) · GHSA-ppc2-wr9h-8mxg (GitHub Security Advisories)Source: ENISA EUVD

5.3EG
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: 0.2%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In OpenStack Swift before 2.38.2, the tempurl middleware does not reject the X-Copy-From header on PUT requests. A TempURL signature only covers the method, expiry, and path, and thus the list of disallowed headers is the only defense against a signed PUT request changing what the request does. An attacker holding a PUT TempURL for a single object can add an X-Copy-From header naming any object in the same account; the copy middleware copies that object to the destination, and the attacker then reads the victim's data back with a GET TempURL for the destination object. Copies across account boundaries are rejected. Only deployments using the shipped default proxy pipeline (tempurl and copy middleware) with account-level TempURL keys are affected.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100

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)
Severity53% × 45%
Impact severity (EG Severity): CVSS 5.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 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: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
16th
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 (5.3): severity, escalated by confirmed exploitation. This CVE's 5.3 is its impact severity (EG Severity), not escalated.

EG Severity
5.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS. 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.

A fix is available. 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 24, 2026

Last Modified

October 6, 2026

References (2)

Vendor Advisories for CVE-2026-97149(1)

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

Affected Packages

(3 across 3 ecosystems)
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, 2.35.1-0+deb13u3
  • every version up to 2.35.1-0+deb13u4: fixed in 2.35.1-0+deb13u4
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
swift2.35.0-4 ... 2.38.1-2 (20 versions)
  • every version up to 2.38.1-3: fixed in 2.38.1-3
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 53× 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.

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. 1 repeat row among the latest 86 is merged into the row it repeats.

  1. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  2. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  3. 2026-10-29 21:25 UTCOSV refresh
  4. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  5. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  6. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  7. 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  8. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  9. 2026-10-25 13:48 UTCEG score recompute
  10. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  13. 2026-10-22 12:13 UTCEG score recompute
  14. 2026-10-22 12:13 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  15. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  16. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  17. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  18. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  19. 2026-10-18 02:56 UTCEG score recompute
  20. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  21. 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  22. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  23. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  24. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  25. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
Show 60 more
  1. 2026-10-12 14:40 UTCEG score recompute
  2. 2026-10-12 04:36 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  3. 2026-10-11 19:11 UTCEG score recompute
  4. 2026-10-11 16:26 UTCEG score recompute
  5. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-10-11 13:38 UTCEG score recompute
  7. 2026-10-11 02:38 UTCEG score recompute
  8. 2026-10-11 02:38 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  10. 2026-10-10 00:40 UTCEG score recompute
  11. 2026-10-10 00:40 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  12. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  13. 2026-10-08 22:45 UTCEG score recompute
  14. 2026-10-08 22:45 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  15. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  16. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  17. 2026-10-07 20:52 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  18. 2026-10-06 18:33 UTCEG score recompute
  19. 2026-10-06 18:33 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  20. 2026-10-06 17:47 UTCEG score recompute
  21. 2026-10-06 17:47 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  22. 2026-10-06 15:19 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  23. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  24. 2026-10-05 16:29 UTCEG score recompute
  25. 2026-10-05 16:29 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  26. 2026-10-04 23:23 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  27. 2026-10-04 14:36 UTCEG score recompute
  28. 2026-10-04 14:36 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  29. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  30. 2026-10-03 12:42 UTCEG score recompute
  31. 2026-10-03 12:42 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  32. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  33. 2026-10-02 10:48 UTCEG score recompute
  34. 2026-10-02 10:47 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  35. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  36. 2026-10-01 08:38 UTCEG score recompute
  37. 2026-10-01 08:38 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  38. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  39. 2026-09-30 06:45 UTCEG score recompute
  40. 2026-09-30 06:45 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  41. 2026-09-29 04:51 UTCEG score recompute
  42. 2026-09-29 04:51 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  43. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  44. 2026-09-28 02:58 UTCEG score recompute
  45. 2026-09-28 02:58 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  46. 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  47. 2026-09-27 01:03 UTCEG score recompute
  48. 2026-09-27 01:03 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  49. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  50. 2026-09-25 23:10 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  51. 2026-09-24 21:16 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  52. 2026-09-24 19:36 UTCEG score recompute
  53. 2026-09-24 19:36 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  54. 2026-09-24 18:27 UTCEG score recompute
  55. 2026-09-24 18:27 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  56. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  57. 2026-09-24 03:34 UTCEG score recompute
  58. 2026-09-24 03:34 UTCGHSA enrichmentGHSA-ppc2-wr9h-8mxg
  59. 2026-09-24 02:32 UTCEG score recomputeFirst assessed: 5.3 MEDIUM
  60. 2026-09-24 02:31 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-97149?
CVE-2026-97149 is a medium-severity vulnerability; its CVE record was published on September 24, 2026. In OpenStack Swift before 2.38.2, the tempurl middleware does not reject the X-Copy-From header on PUT requests. A TempURL signature only covers the method, expiry, and path, and thus the list of disallowed headers is the only defense against a signed PUT request changing what the request does. An…
When was the CVE record for CVE-2026-97149 published?
The CVE record for CVE-2026-97149 was published on September 24, 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 October 6, 2026; the record at its source may have been updated since.
Is CVE-2026-97149 actively exploited?
CVE-2026-97149 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (16th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-97149?
CVE-2026-97149 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-97149?
A fix for CVE-2026-97149 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-97149 are linked in the Vendor Advisories panel on this page.

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