RHSA-2026:25039
Vulnerability from csaf_redhat - Published: 2026-06-10 09:34 - Updated: 2026-06-27 08:40Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
jaeger:
* jaeger-2.19.0-1.hum1 (aarch64, x86_64)
* jaeger-2.19.0-1.hum1.src (src)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Prometheus. An unauthenticated attacker can exploit the remote read endpoint (`/api/v1/read`) by sending a specially crafted, small snappy-compressed payload. This payload causes a disproportionately large memory allocation, leading to memory exhaustion and a Denial of Service (DoS) by crashing the Prometheus process.
7.5 (High)
Affected products
Fixed
3 products
Threats
Impact
Important
A flaw was found in urllib3, an HTTP client library for Python. When using the low-level API via `ProxyManager.connection_from_url().urlopen()` with `assert_same_host=False`, cross-origin redirects can still forward sensitive headers. This could allow a remote attacker to gain unauthorized access to sensitive information.
5.9 (Medium)
Affected products
Fixed
3 products
Threats
Impact
Moderate
A flaw was found in urllib3, an HTTP client library for Python. This vulnerability allows a remote attacker to cause excessive resource consumption, such as high CPU usage and massive memory allocation, on the client side. This occurs when urllib3 attempts to decompress an entire HTTP response, even if only a partial read was requested, or when draining the connection after a partial decompression. This can lead to a Denial of Service (DoS) condition.
7.5 (High)
Affected products
Fixed
3 products
Threats
Impact
Important
A flaw was found in joserfc, a Python library for JSON Object Signing and Encryption (JOSE). This vulnerability allows a remote attacker to cause resource exhaustion, leading to a Denial of Service (DoS), by sending oversized JSON Web Signature (JWS) payloads. The library fails to apply size limits, specifically JWSRegistry.max_payload_length, when processing RFC7797 b64=false JWS payloads.
5.3 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:jaeger-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:jaeger-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:jaeger-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
References
33 references
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"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-48990"
},
{
"category": "external",
"summary": "RHBZ#2490168",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2490168"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-48990",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-48990"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-48990",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48990"
},
{
"category": "external",
"summary": "https://github.com/authlib/joserfc/releases/tag/1.6.7",
"url": "https://github.com/authlib/joserfc/releases/tag/1.6.7"
},
{
"category": "external",
"summary": "https://github.com/authlib/joserfc/security/advisories/GHSA-wphv-vfrh-23q5",
"url": "https://github.com/authlib/joserfc/security/advisories/GHSA-wphv-vfrh-23q5"
}
],
"release_date": "2026-06-17T21:08:10.534000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-06-10T09:34:54+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:jaeger-main@aarch64",
"Red Hat Hardened Images:jaeger-main@src",
"Red Hat Hardened Images:jaeger-main@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:25039"
},
{
"category": "workaround",
"details": "The risk can be mitigated by rejecting oversized serialized JWS inputs before they reach joserfc and enforcing strict request/body size limits at the application or reverse-proxy layer.",
"product_ids": [
"Red Hat Hardened Images:jaeger-main@aarch64",
"Red Hat Hardened Images:jaeger-main@src",
"Red Hat Hardened Images:jaeger-main@x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:jaeger-main@aarch64",
"Red Hat Hardened Images:jaeger-main@src",
"Red Hat Hardened Images:jaeger-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "joserfc: joserfc: Resource exhaustion via oversized JSON Web Signature (JWS) payloads"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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