CVE-2026-57848

MEDIUMPre-NVD 5.55.5
EchelonGraph scoreMEDIUM confidence

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

Score 5.5 from GitHub Security Advisory published 2026-07-18. A secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-45395 (ENISA EUVD) · GHSA-cr46-r787-v566 (GitHub Security Advisories)Source: ENISA EUVD

5.5EG
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: 5.5Exploit: 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.

Stoat for Android exports the chat.stoat.activities.ShareTargetActivity component (reachable to any process on the device via the android.intent.action.SEND intent) and accepts the file to share as a URI supplied through the android.intent.extra.STREAM extra. The activity does not validate or filter the incoming URI before using it as the outgoing attachment, so a caller can pass a file:// URI pointing at the application's own internal storage (for example /data/data/chat.revolt/databases/revolt.db, cached authentication token files, or preferences) and have the app treat that internal file as a user-selected attachment. An attacker who can invoke intents on the victim's device (via ADB access, a co-installed malicious application, or any other route that reaches Android's intent dispatch) can launch ShareTargetActivity with such a URI and cause the victim, on a single channel-selection interaction, to send the internal file to any Stoat channel or user of the attacker's choosing. The composer displays the attachment as \"attachment\" with no filename indication, so the victim has no visible signal that the file being sent is their own internal application data. Consequences include disclosure of the local Stoat database (message history, contact list, cached content), disclosure of authentication tokens permitting full account takeover, and disclosure of any other file readable by the app process.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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)
Severity55% × 45%
Impact severity (EG Severity): CVSS 5.5 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: 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
0.2%
EPSS %ILE
10th
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 (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.

EG Severity
5.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). 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: the SSVC and BOD 26-04 blocks below.

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

July 18, 2026

Last Modified

October 24, 2026

Advisory Details (3)

Auto-updated Jul 18, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
Web page

Stoat for Android Internal File Disclosure via Exported ShareTargetActivity URI Validation | Advisories | VulnCheck

https://www.vulncheck.com/advisories/stoat-for-android-internal-file-disclosure-via-exported-sharetargetactivity-uri-validation
GitHub commit

commit 50d5f5143940 (stoatchat/for-android)

Fix landed in stoatchat/for-android commit 50d5f5143940 — awaiting tagged release

https://github.com/stoatchat/for-android/commit/50d5f5143940809ebb5a61e5f507c956c33aa970
Web page

GitHub - stoatchat/for-android: Stoat for Android — App and internal API library · GitHub

https://github.com/stoatchat/for-android

Vendor Advisories for CVE-2026-57848(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 11× in last 7d / 41× 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 198 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 98 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-29 16:37 UTCEG score recompute
  2. 2026-10-29 16:37 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  3. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  4. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  5. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  6. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  7. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  8. 2026-10-25 14:17 UTCEG score recompute
  9. 2026-10-24 20:28 UTCEG score recompute
  10. 2026-10-24 20:28 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  11. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  12. 2026-10-22 21:03 UTCEG score recompute
  13. 2026-10-22 21:03 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  14. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  15. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  16. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  17. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  18. 2026-10-18 03:28 UTCEG score recompute
  19. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  20. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  21. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  22. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  23. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  24. 2026-10-12 15:53 UTCEG score recompute
  25. 2026-10-11 19:37 UTCEG score recompute
Show 75 more
  1. 2026-10-11 16:52 UTCEG score recompute
  2. 2026-10-11 14:15 UTCEG score recompute
  3. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  4. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  5. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  6. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  7. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  8. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  9. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  10. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  11. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  12. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  13. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  14. 2026-10-01 10:22 UTCEG score recompute
  15. 2026-10-01 10:22 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  16. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  17. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  18. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  19. 2026-09-28 07:48 UTCEG score recompute
  20. 2026-09-28 07:48 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  21. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  22. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  23. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  24. 2026-09-24 04:27 UTCEG score recompute
  25. 2026-09-24 04:27 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  26. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  27. 2026-09-23 02:21 UTCEG score recompute
  28. 2026-09-23 02:21 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  29. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  30. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  31. 2026-09-18 11:24 UTCEG score recompute
  32. 2026-09-18 11:24 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  33. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  34. 2026-09-17 10:12 UTCEG score recompute
  35. 2026-09-17 10:12 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  36. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  37. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  38. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  39. 2026-09-14 05:39 UTCEG score recompute
  40. 2026-09-14 05:39 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  41. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  42. 2026-09-13 04:28 UTCEG score recompute
  43. 2026-09-13 04:28 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  44. 2026-09-11 21:03 UTCEG score recompute
  45. 2026-09-11 21:03 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  46. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  47. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  48. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  49. 2026-09-07 23:52 UTCEG score recompute
  50. 2026-09-07 23:52 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  51. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  52. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  53. 2026-09-05 20:24 UTCEG score recompute
  54. 2026-09-05 20:24 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  55. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  56. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  57. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  58. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  59. 2026-08-31 04:27 UTCEG score recompute
  60. 2026-08-31 04:27 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  61. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  62. 2026-08-30 03:09 UTCEG score recompute
  63. 2026-08-30 03:09 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  64. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  65. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  66. 2026-08-27 23:52 UTCEG score recompute
  67. 2026-08-27 23:52 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  68. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  69. 2026-08-26 22:32 UTCEG score recompute
  70. 2026-08-26 22:32 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  71. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  72. 2026-08-25 15:49 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  73. 2026-08-24 14:36 UTCEG score recompute
  74. 2026-08-24 14:35 UTCGHSA enrichmentGHSA-cr46-r787-v566 · GitHub CVSS 5.5
  75. 2026-08-23 13:24 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-57848?
CVE-2026-57848 is a medium-severity vulnerability; its CVE record was published on July 18, 2026. Stoat for Android exports the chat.stoat.activities.ShareTargetActivity component (reachable to any process on the device via the android.intent.action.SEND intent) and accepts the file to share as a URI supplied through the android.intent.extra.STREAM extra. The activity does not validate or…
When was CVE-2026-57848 made public?
CVE-2026-57848 was made public on July 17, 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 July 18, 2026. EchelonGraph's copy of the record carries a last-modified date of October 24, 2026; the record at its source may have been updated since.
Is CVE-2026-57848 actively exploited?
CVE-2026-57848 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (10th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57848?
CVE-2026-57848 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-57848?
An upstream fix for CVE-2026-57848 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-2026-57848 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-57848

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